[Snowfall in the southern Kanto region] Fear of heavy snowfall in the Kanto-Koshin region tomorrow What will be the snowfall in the 23 wards Latest forecast snowfall amount

2026/03/02 12:56

In the Kanto-Koshin region, there will be heavy snow in some places, mainly along the mountains and in mountainous areas, due to the influence of a low pressure system on the south coast from tomorrow the 3rd (Tuesday) to the 4th (Wednesday).
If the temperature is lower than expected, there is a possibility of snowfall even in the flatlands of southern Kanto.
Be careful of traffic obstructions caused by snow accumulation and frozen roads, and be careful of snow accumulation and avalanches.

#A pattern of heavy snow in the Kanto region, where there is little snow. ``South coast low pressure''
A low pressure system accompanied by a front is expected to move east-northeast along the south coast of Honshu from tomorrow 3rd (Tuesday) to the 4th (Wednesday).
In the Kanto-Koshin region, cold air will flow towards this low pressure system on the south coast.
Due to the influence of a low pressure system on the south coast, rain and snow are expected to fall mainly along the mountains and in mountainous areas from early morning on the 3rd (Tuesday) until Wednesday the 4th (Wednesday).
Heavy snow is expected to occur mainly along the mountains and at high altitudes in the mountains.



#Snowfall in southern Kanto
In the southern Kanto region, rain and snow are expected to fall from early morning tomorrow, the 3rd (Tuesday).
There is a risk of heavy snow from the afternoon of tomorrow 3rd (Tuesday) to the 4th (Wednesday), mainly along the mountains and mountainous areas of western Tama in Tokyo.
At night when the temperature drops, there will be snow in some places, especially in the high altitude mountains and mountain passes of Kanagawa Prefecture, and the Chichibu region of Saitama Prefecture.
If the surface temperature is lower than expected, snow is expected to accumulate in some places in the southern Kanto region, such as the 23 wards and the Tama region.
Also, in coastal areas, there will be places where the northerly winds will be stronger.



#Latest! ! Expected snowfall amount
Expected snowfall amount for the 24 hours until noon on Tuesday the 3rd (in areas with the most)
Mountainous areas in northern Kanto 10cm
Plains in northern Kanto 1cm
From Hakone to Tama and Chichibu 3cm
Koshin 5cm

Forecasted snowfall for the next 24 hours until noon on the 4th (Wednesday) (in areas with the most)
Mountains in northern Kanto 40cm
Plains in northern Kanto 10cm
From Hakone to Tama and Chichibu 10cm
Plains in southern Kanto 1cm
Koshin 30cm

If the ground temperature is lower than expected, there is a possibility of heavy snowfall of warning level.

In the Kanto-Koshin area, please be aware of traffic disruptions due to snowfall and frozen roads from the evening of tomorrow 3rd (Tuesday) until the 4th (Wednesday) the next day. Also, be careful of collapsed greenhouses, snow accretion on overhead wires, power lines, trees, and avalanches.

Weekly weather: After the weather improves, be careful of cedar pollen scattering; weather is expected to deteriorate nationwide on the weekend

2026/03/02 08:18

There is a possibility that the weather will deteriorate again across the country from the weekend (Saturday) onwards.



Tomorrow, on the 3rd and 4th, due to the influence of a low pressure system on the south coast, northern and eastern Japan will experience cold rain and snow, and there will be localized areas of heavy snow along the mountains and inland. There is a possibility of snow accumulating in some areas even on the plains, so please be careful of deteriorating road conditions. From the 3rd to the 4th, there will be a temporary return of cold weather from northern Japan to eastern Japan, and daytime temperatures will not rise much, making it feel colder. On the other hand, the weather in western Japan is expected to improve on the 4th and bring spring warmth.

On the 5th, it looks like there will be snow in some places in Hokkaido, but the weather is expected to improve from Tohoku to Kanto-Koshin and Hokuriku. However, after the weather improves, the amount of cedar pollen scattered tends to increase. There are some places where cedar pollen has already reached its peak, so those who are sensitive should take precautions.

Around Friday the 6th, a new front and low pressure system will approach from the west, and the weather is expected to deteriorate again from the west. The low pressure system will then continue to develop as it moves through the Sea of Japan, and is expected to pass through northern Japan around Monday the 9th of next week. On Saturday the 7th, it will rain across the country, and there will be some places in northern Japan where it will snow. Especially in Hokkaido, there is a possibility that the effects of the low pressure system will continue to bring snow and strong winds, resulting in rough weather, so please pay close attention to the latest weather information that will be updated in the future.

Today, the 2nd (Monday), the weather is going downhill from the west. Tomorrow, the 3rd (Tuesday), there will be cold rain and snow in northern and eastern Japan, with the possibility of snow in the plains.

2026/03/02 07:34

Today, the 2nd (Monday), a low pressure system and front are approaching from the East China Sea. Developed rain clouds associated with low pressure and fronts are approaching from the west, and it is already raining in some places in Kyushu and the Nansei Islands.



The low pressure system accompanied by the front is expected to move along the southern coast of Honshu, and the rain will gradually spread over western Japan. In southern Kyushu and Okinawa, please be careful of heavy rain accompanied by thunder from noon to evening. In Chugoku, Shikoku, and Kinki, the weather will gradually change to rain from the afternoon. It is likely that there will be places in the Tokai and Kanto regions where it will start raining late at night.



Tomorrow, the 3rd, the low pressure system will continue to move along the southern coast of Honshu. From early morning until noon on the Pacific side of western Japan, be careful of heavy rain accompanied by thunder in Shikoku and the Kii Peninsula. From Kanto-Koshin to the southern part of Tohoku, there will be freezing rain and snow, and there are likely to be some places along the mountains and inland where the snow will be heavier. Because the low-pressure system is moving eastward relatively slowly, cold rain and snow are expected to continue for a long period of time from northern to eastern Japan into the 4th (Wednesday).



In particular, in northern and eastern Japan, snowfall will be heavier in localized areas, especially inland and along mountains. The snow is expected to spread to the plains, and if the snow continues to fall, there is a risk that snow will accumulate even in the plains of the Kanto region. From the 3rd tomorrow to the 4th, please be careful of deteriorating road conditions and snow accumulation.

Weekly Weather Will you be able to see the total lunar eclipse on the 3rd (Tuesday)

2026/03/01 12:38

Today, the 1st (Sunday), a low pressure system is moving northward east of Hokkaido, and a high pressure system is protruding from the continent. In northern Japan, there is a large gradient in atmospheric pressure and winds are increasing. Also, in some parts of Hokkaido, it is snowing.
The area around Honshu is covered by an anticyclone that extends from the continent, and there are many places where it is sunny. In the Okinawa region, there will be some places where it will rain due to the humid air.

Tomorrow, the 2nd (Monday), a low pressure front will form near the East China Sea and move eastward, so the weather will deteriorate from the west. Rain is expected to start falling around noon in Kyushu and gradually spread over the area. It will start raining in China and Shikoku at night.
Eastern and northern Japan will have many sunny days, but the Kanto region will be affected by humid air and will have many clouds, and there will be some areas where it may rain. There will be places on the Sea of Okhotsk side of Hokkaido where it will snow.



On the 3rd (Tuesday), a low pressure system will move eastward along the southern coast of Honshu, and the area of rain will spread from Kinki to southern Tohoku. Clouds are likely to prevail from northern Tohoku to Hokkaido as well.

On the 4th (Wednesday), the weather will improve in western Japan, and there will be some lingering rain in the Tokai and Tohoku regions. As the low pressure passes, the temperature will drop and the winter cold will likely return, so please take care of your health.

On the 5th (Thursday), many places near Japan will be covered in high pressure and it will be sunny.
From the 6th (Friday), the low pressure system will move toward the Sea of Japan and pass near northern Japan until the 8th (Sunday), so the weather is likely to go downhill again from the west.



Now, regarding the time of the total lunar eclipse on the 3rd (Tuesday), clouds are likely to spread over a wide area due to the influence of a low pressure system moving eastward.
Unfortunately, there is a possibility of rain in China, Kinki and southern Tohoku. On the other hand, we can expect periods of sunshine in Okinawa to Kyushu and parts of northern Japan, which are behind the low pressure system.



This total lunar eclipse will be observed at a time when it is easy to observe.It will begin to eclipse in the eastern sky at 18:50, become a total eclipse from 20:04 to 21:03, and then the eclipsed portion will gradually become smaller, until the partial eclipse ends in the southeastern sky at 22:18.
The total eclipse of the moon appears reddish-black, a color known as ``red copper.''
The total lunar eclipse lasts about an hour, so it might be a good idea to aim for a gap in the clouds for a chance.
Forecasts are still subject to change, so check back for the latest information.

Today is a pleasant and sunny day in eastern and western Japan.Hinamatsuri will be as cold as January in the Kanto region.

2026/03/01 07:02

Today, the first day of the month, cold air will flow mainly into northern Japan, so there will be many places in northern Japan where the temperature will be lower than the day before, and many places will experience temperatures typical of this time of year. The air seems to feel cool even during the day.

Although there are some places in eastern and western Japan where the temperature will drop from the previous day, there will be places in western Japan where the temperature will be the same as yesterday or even higher. In many places, the temperature during the day exceeds 15 degrees Celsius, so you won't need a jacket during the day to enjoy the cheerful weather.
Since the temperature difference between morning and evening and during the day is large, it would be a good idea to choose clothes that are easy to adjust.

The predicted maximum temperature is Sapporo 1c, Sendai 11c, Tokyo 18c, Nagoya 19c, Kanazawa 12c, Osaka 17c, Kochi 18c, and Fukuoka 17c.



Next week, low pressure and high pressure will alternately pass near Japan, and the weather is expected to change periodically. It's going to be a week where we need to be careful about changes in temperature, as there will be times when cold air will temporarily move south.
In central Tokyo, a low pressure system will pass through the Doll's Festival on the 3rd (Tuesday), and rain is expected. The temperature is not expected to rise, and the forecast high temperature is 9 degrees Celsius, which is expected to be as cold as mid-January. There will be a big difference in temperature from the day before, so please be careful not to get sick.

After the 4th, temperatures across the country are likely to settle down to normal. As the snow continues to melt, please be careful of snow melting disasters in areas with heavy snowfall.

Today's weather (Sunday): Widespread clear skies. Be careful of pollen scattering.

2026/03/01 06:23

Today, the 1st (Sunday), the start of March, will be sunny in many places as the area around Japan will be covered in high pressure. You need to be careful about pollen scattering especially in sunny areas.



On the Japan Sea side of northern Japan, clouds will likely spread mainly in the morning. It looks like there will be some sunshine in the afternoon. It looks like it will be sunny and blue skies on the Pacific side.

It will be sunny and sunny from eastern to western Japan. It looks like it's going to be a nice day to spend the day and go out. In sunny areas, pollen is expected to scatter, so if you suffer from hay fever, please take precautions.

The sky in Okinawa is dominated by clouds. There is a possibility of rain showers after the evening, so it is a good idea to bring a foldable umbrella with you when going out.

What do you call a day when the maximum temperature is 40c or higher "Hot day" "Super hot day" The Japan Meteorological Agency conducts a survey

2026/02/28 12:36

The Japan Meteorological Agency announced on Friday, February 27th that it will conduct a survey regarding the names of days when the maximum temperature is 40c or higher. Anyone can answer the
survey once, and the format is to select one of 13 possible names, such as "scorching hot day," "extremely hot day," "super hot day," or to write a proposed name in the free text field.
The Japan Meteorological Agency will decide based on the survey results as well as the results of interviews with experts and Japanese language experts.

Currently, days with a maximum temperature of 25 C or higher are defined as "summer days," days with a maximum temperature of 30 C or higher as "midsummer days," and days with a maximum temperature of 35 C or higher as "extremely hot days." These days are used in weather forecasts, etc., but there is no term yet for days with a maximum temperature of 40 C or higher.



In recent years, remarkable high temperatures have been recorded in summer for three consecutive years, and temperatures exceeding 40c have been observed almost every year.
Last year, daily maximum temperatures of 40c or higher were observed at 30 locations across the country. In addition, the highest temperature recorded was 41.8c on August 5th in Isesaki, Gunma Prefecture, 41.4c on August 6th in Shizuoka Prefecture, and 41.4c on August 5th in Hatoyama, Saitama Prefecture.

The summer weather forecast released by the Japan Meteorological Agency this week predicts that average temperatures will be higher than normal across the country. It looks like it will be extremely hot again this year.
Why not take the survey and be aware of how to deal with the dangerous heat

The survey will be conducted on the Japan Meteorological Agency website from February 27th (Friday) to March 29th (Sunday).

[Latest Weekly Weather] Calm weather to start March.Total lunar eclipse on the 3rd (Tuesday) Hinamatsuri.Where can you see it

2026/02/27 12:14

[Weather points for the next week]
+March starts with clear skies and calm weather
+3rd (Tuesday) Hinamatsuri is a cold rain
+Total lunar eclipse will be visible in some places on the night of Hinamatsuri



Today, February 27th (Friday), a low pressure system west of Kyushu will move eastward, and a front will approach the Nansei Islands.

For this reason, it will rain in western Japan and the Nansei Islands,
There will be heavy rain accompanied by thunder in some places in Kyushu and Okinawa.

Please be careful of sudden intensifying rain, lightning, gusts of wind, and hail.

Tomorrow, the 28th (Saturday), the atmospheric pressure will be weak, high in the west and low in the east,
on the Sea of Japan side, rain and snow will likely fall.



At the start of March, on the 1st (Sunday), the area around Japan will be covered by high pressure, and
it is expected that sunlight will reach many areas during the day.

However, the weather changes quickly in spring, and from the 2nd (Monday), a low pressure system accompanied by a
front will approach from the East China Sea, so the weather is likely to deteriorate from the
west in many places.

In Kyushu, it will start raining as early as around noon on the 2nd (Monday), and it is expected to rain over a wide area from the 3rd (Tuesday) to the 4th (Wednesday).
There will be heavy rain, especially in western and eastern Japan, and
the rain is likely to become stronger in many places.

In addition, the rain from the 3rd (Tuesday) to the 4th (Wednesday) will be cold as cold air will be drawn towards the low pressure system.
You also need to be careful about changes in temperature.

On the 5th (Thursday), the atmospheric pressure will once again be weak, with high pressure in the west and low pressure in the east, and
rain and snow are expected on the Sea of Japan side.

The weather will change periodically over the next week.



Now, on the night of March 3rd (Tuesday), a total lunar eclipse will occur across Japan.

If you miss this lunar eclipse, the next total lunar eclipse will be on January 1, 2029, and you won't be able to see it for a while.

Currently, there are many places nationwide where it will rain on the 3rd (Tuesday), so there will be few places where you can see a total lunar eclipse.

However, the low pressure system is moving a little faster than expected yesterday, so
the possibility of seeing it on the Pacific side of western Japan and the Nansei Islands has increased.

Also, Hokkaido is less likely to have rain clouds, so there will likely be time to see a total lunar eclipse through the gaps in the clouds.

Please note that forecasts may still change in the future, so please check the latest forecast.




On March 3, 2026, around 7:00 pm, the moon will begin to appear eclipsed, and after 8:00 pm, there will be a total eclipse in which the entire moon will be in the shadow of the Earth, turning it a coppery red.

The total eclipse ends after 9pm, but you can enjoy the changing appearance of the moon until after 10pm, when the moon returns to its original full moon state.

This is a lunar eclipse that can be seen all over Japan and is easy to observe depending on the time of day.
I hope that future rain forecasts will change and more places will be able to see a total lunar eclipse.

While the weather is warming up ahead of spring, there continues to be a noticeable lack of rainfall on the Pacific side (weather summary from February 15, 2026 to February 21, 2026)

2026/02/27 07:32

#Summary of the weather for this period (February 15th to February 21st)
The average temperature tended to be above normal in many places, as low pressure and high pressure systems alternately passed near Honshu, making it easier for warm air to enter from the south. In Hokkaido in particular, there was a marked trend in high temperatures, nearly 3 to 4 degrees Celsius above normal.

Precipitation tended to be noticeably low from western Japan to the Pacific side of eastern Japan and the Pacific side of Northeastern Japan, where it was less affected by low pressure and fronts, and there were many locations where the total precipitation for the period was 0 mm. In the Sea of Japan region from Hokkaido to the San'in area, the winter-like atmospheric pressure pattern did not last long and the influence of cold air was weak, so there were many places with below-average precipitation.

Sunshine hours tended to exceed normal years because there were many days covered by high pressure mainly from western to eastern Japan, and the sunshine hours were significantly above normal mainly on the Sea of Japan side from the San'in area to Hokuriku. On the other hand, the Sea of Japan side of Hokkaido was susceptible to the effects of low pressure, so temperatures tended to be slightly below normal.



[About the weather during this period]
#Characteristics of pressure distribution
On the 15th, a low pressure system accompanied by a front moved eastward from the west of Hokkaido through the Sea of Okhotsk while developing. Another low pressure system is heading east to the south of Japan. On the 16th, the low pressure system moving through the Sea of Okhotsk further developed, forming a temporary winter-like pressure pattern near Honshu. On the 17th, high pressure gradually became dominant around Honshu, and the winter-like pressure pattern loosened. A low-pressure system formed near northeastern China in the early afternoon, and a front became apparent by late evening, and by the 18th it had strengthened as it moved through the Sea of Japan. A low pressure system also formed over the southeast coast of Kanto and on the front south of Honshu and moved eastward, forming a temporary winter-like pressure pattern near Honshu on the 19th. Western and eastern Japan were gradually covered by high pressure, but the winter-like pressure pattern centered on northern Japan continued. On the 20th, the area around Honshu was widely covered by high pressure, and the winter-like pressure pattern centered on northern Japan was gradually dissolving. In the south of Kanto, a low pressure system accompanied by a local front developed and moved east-northeast to the east of Kanto. On the 21st, the area around Honshu was widely covered by high pressure.

#Precipitation
On the 15th, it rained in the Nansei Islands due to the influence of a low pressure system, and heavy rain was observed in places such as Kaminaka, Minamitane-cho, Kagoshima Prefecture. In Hokkaido, it started raining in the afternoon, and at night the rain turned to snow. On the 16th, due to a temporary winter-like atmospheric pressure pattern, snow became heavier on the Sea of Japan side of northern Japan, mainly in the morning. After the evening, localized rain and snow fell in the southern Kanto region due to the shear line. On the 17th, snow fell from the Sea of Japan side of northern Japan to Hokuriku, and the rain and snow in the southern Kanto region had mostly subsided around noon, but in the southern Kanto region, it started raining again at night due to the influence of a coastal front. On the 18th, a front extending from a low pressure system moving through the Sea of Japan caused snow and rain mainly on the Sea of Japan side from Hokkaido to the San'in area. On the 19th, with a winter-like atmospheric pressure pattern centered in northern Japan, winds became stronger in Hokkaido, resulting in rough weather, and a temporary heavy snow warning was issued in parts of the Sea of Japan. On the 20th, there was localized rain along the Kanto coast and thunderstorms over the Izu Islands. It rained in some parts of Okinawa due to the damp air. On the 21st, the area around Honshu was covered with high pressure, and there was almost no precipitation over a wide area.

#Temperature
On the 15th, with warm air coming in from the south, it became as warm as late March to April in a wide area. In central Tokyo, the temperature was 18.4c, which is as warm as early April. On the 16th, due to the influence of cold air moving south, temperatures dropped mainly on the Sea of Japan side from Hokkaido to the San'in area. The Pacific side west of the Kanto region continues to be warmer than normal. On the 17th, temperatures dropped widely from Kanto to Kyushu due to cold air. In the Kanto region, there are many places where the temperature does not reach 10c during the day, and in western Japan, the temperature hovers just above 10c. On the 18th, temperatures rose nationwide due to southerly winds blowing toward a low pressure system. On Ishigaki Island, the Hikanzakura tree is in full bloom. On the 19th, as cold air moved southward, the cold returned to various places from the previous day, and the maximum temperature in central Tokyo was 11.1c. On the 20th, the cold weather eased somewhat in many places as the cold air moved northward. In Sendai, the flowering of Hakubai was announced. On the 21st, many places were covered in high pressure and sunny, and temperatures rose in many places. In Sapporo, the temperature rose to 7.9c, the warmest temperature of the season (as of February 21st).

1 month forecast: It will be warm nationwide at the beginning of March, and the cold will temporarily return in mid-March The trend of low rainfall on the Pacific side is likely to continue.

2026/02/26 23:32

On the 26th (Thursday), the Japan Meteorological Agency announced the latest monthly weather forecast for the next month.

Also, the whole country will be covered in warm air mainly at the beginning of the period.

Temperatures are expected to rise nationwide towards the beginning of March. In areas with heavy snowfall, the snow is expected to melt rapidly, so please be careful of avalanches and snow falling from roofs.
Also, in western and eastern Japan, when the weather gets sunny and the temperature rises, the amount of pollen scattered increases, so it will be essential to take thorough measures against hay fever.
From March 7th to March 13th, temperatures are expected to be near normal in many places, and in northern Japan, temperatures are expected to be near or below normal. The cold weather will return in mid-March, and the temperature difference is likely to increase. The second half of March will be near normal across the country, and the season will move toward spring.



Precipitation is expected to be near normal in northern to western Japan, and below normal in Okinawa and Amami. The weather changes periodically, and from around the 2nd to the 6th of the week, there will be areas that are susceptible to the effects of fronts and low pressure systems, resulting in heavy rain. However, it is not expected that the rainfall will be enough to overcome the low rainfall that has been occurring so far, and water shortages and dry weather are likely to continue. Please continue to conserve water as much as possible, and be careful when handling fire on days when the air is dry.