Today, the 12th (Saturday), Tokai to Kyushu will have rare sunny days, so be careful of the severe lingering heat.The area around Kanto will not feel refreshed.

2026/09/12 06:41

Today, the 12th (Saturday), there will be relatively many sunny spells, and the sun will reach many places. From now on, the influence of the autumn rain front will continue, and there will be many days with cloudy and rainy weather, and there will be rare sunny days in some places.





Due to the influence of the front extending to the south coast, it is likely to rain over a wide area around the Kanto region today, mainly in the morning. Please be careful of landslides as the ground may be loose in some places due to the rain that has fallen so far. The rain is expected to subside in many places in the afternoon.

From Hokkaido to Tohoku, there are many places with sunny skies.

The Kinki and Chugoku regions will have sunny skies in many places, but there is a chance of rain in some areas in the afternoon.
Shikoku and Kyushu also have many sunny days, but rain is expected in places on the Pacific side, including Kochi, in the morning. In addition, there will be heavy rain with thunder in some parts of Kyushu at night.

The Nansei Islands are often sunny in many places, but please be careful of showers and thunderstorms.




In areas west of Nagoya, there are many places in the region west of Nagoya where it will be a midsummer day with a maximum temperature of 30c or higher. The temperature in Nagoya is expected to be 31 degrees Celsius, which is expected to be about 6 degrees warmer than yesterday, and the experience will change drastically. Temperatures can fluctuate considerably, so to avoid heatstroke, be sure to drink plenty of water and take breaks even when you're out and about.

Weather for tomorrow, the 12th (Saturday): Rain in the Kanto region, mainly in the morning; sunny and humid from the Tokai region to western Japan

2026/09/11 18:04

Tomorrow, the 12th (Saturday), the autumn rain front is expected to remain stationary from the southern coast of the Kanto region to the east of Japan. The activity of the front is expected to weaken, but the sky in the Kanto region near the front will not be clear.



Northern Japan will be covered in high pressure and it will be sunny in autumn. It looks like it will be a relatively comfortable experience during the day. There will be a big difference in the experience between morning and evening, so please be careful when choosing your clothes.

The weather in the Kanto region is prone to rain, especially in the morning. Please bring rain gear if you go out in the morning. The weather will gradually improve in the afternoon.

From the Tokai to the west, there are many places where sunlight reaches. As the sun shines, the temperature rises, making it feel hot and humid during the day. It would be a good idea to choose clothes that are breathable.

There are many sunny places in Okinawa, so the weather should be fine for going out.

El Nino Monitoring Bulletin: Sea surface temperatures in the equatorial Pacific region are expected to reach record high levels

2026/09/11 17:59

On the 9th (Wednesday) of this week, the Japan Meteorological Agency released the latest El Nino monitoring bulletin.
According to this, the water temperature in the El Nino monitoring area in August was 3.4c higher than the standard value. This value exceeds the highest temperature for August in 1997, which was 3.0c, and is the highest level ever.



The El Nino phenomenon is a phenomenon in which sea surface temperatures rise above normal from the equatorial Pacific Ocean near the international date line to the coast of South America, and this condition persists for about a year. Areas with high sea surface temperatures spread out over a wider area than usual, which affects the climate around the world.
When the El Nino phenomenon occurs, it is said that statistically there will be a tendency for cool summers and warm winters in areas around Japan.
The Japan Meteorological Agency defines an "El Nino phenomenon" when the five-month moving average of the difference in sea surface temperature from the standard value in the El Nino monitoring area is +0.5c or higher for six months or more in a row.
Also, a situation in which the difference in sea surface temperature in the reference area from normal to the average year exceeds +2c over a three-month period is commonly referred to as "Super El Nino." This is a very rare case and was previously observed in 1982-83, 1997-98, and 2015-16.



Going forward, the Japan Meteorological Agency predicts that the El Nino phenomenon will continue into the winter, and the probability prediction for each month's El Nino monitoring index is 100%.
The Japan Meteorological Agency's coupled atmosphere-ocean model predicts that interactions between the atmosphere and the ocean will continue to maintain warm water in the ocean surface layer from the central to eastern equatorial Pacific Ocean. As a result, the sea surface temperature in the El Nino monitoring area is expected to remain higher than the standard value through the winter, reaching its peak.
For this reason, the future difference from the standard value is expected to be comparable to the previous highest value during the peak season, which was +3.6c in December 1997.

[Weather polarization] Tomorrow, it will be rainy in the Kanto region, and sunny and humid from the Tokai region to the west (commentary: weather forecaster Atsuko Miyake)

2026/09/11 14:12

It looks like the Kanto region will continue to experience rain and cool conditions into tomorrow, the 12th (Saturday).
However, the weather will return to sunny skies over the weekend in western and northern Japan,
and it looks like it will be hot and humid.



First, here is the state of the rain clouds as of noon today, Friday the 11th.
Rain clouds associated with the autumn rain front are covering the Pacific side of western and eastern Japan.

At this time, we are observing moderately heavy rain with an hourly rainfall of over 10mm
, mainly in Mie and Aichi prefectures.
Although there are rain clouds over northern Japan due to a weak front,
these are not rain clouds that bring down that heavy rain.



This is the forecasted weather map for tonight and tomorrow night.
The autumn rain front is expected to remain stationary over the Pacific coast of western and eastern Japan into tonight.

However, the activity of the front from the west will weaken tomorrow.
The front is also expected to move a little further south.

For this reason, it is likely that there will be sunny spells on Saturdays and Sundays in western and northern Japan.




Let's take a look at the rain cloud forecast for tomorrow.

There is an active rain cloud off the Tokai coast, but it is expected to move northward a little after this.
By the time the date changes late at night,
active rain clouds are expected to move into Shizuoka Prefecture.

In some cases, heavy rain with thunder is possible.



In addition, active rain clouds are expected to form in the northern part of the Kanto region and near the Izu Islands from early morning until dawn tomorrow (Saturday).

The Kanto region will experience temporary heavy rain through tomorrow.
You should also be careful of sudden strong rain accompanied by thunder.

In the areas on the Pacific side of the Kinki and Kanto regions,
the ground has become loose in some areas due to previous rains.
Please be careful of landslides even if it rains a little.

In the afternoon of tomorrow (Saturday), the rain clouds are expected to gradually move away to the east.



This is the weather for Saturday and Sunday.
Tomorrow (Saturday), there will be some sunshine mainly in western Japan, Hokuriku, and the Sea of Japan side of northern Japan.
In the areas west of the Tokai Sea, there are many places where the maximum daytime temperature exceeds 30c,
the height of summer.

The temperature and humidity are rising, making it feel quite hot and humid.
We still need to be careful about heatstroke.

The Kanto region is expected to feel chilly tomorrow at 23c, but when the 13th (Sunday) arrives, we can expect sunny skies in the afternoon.
It looks like the humid heat will return in the Kanto region from Sunday.



Weekly forecast.
The front is likely to remain near Honshu into next week, and
the weather will continue to be prone to rain.
Also, there are times when activity increases as the front moves north and south.
In the Hokuriku region, there is a risk of heavy rain starting around the 14th (Monday).
Warning-level heavy rain is also expected, so please continue to pay attention to the latest information.

[A must-see for weekend outdoor festival participants] Soga's large-scale festival, this weekend's (9/12/13) weather and points to keep in mind

2026/09/11 12:14

Japan's largest Japanese music rock festival will be held in Soga, Chiba Prefecture, this weekend. This is a historic festival that has been held for more than 25 years since 2000, when the culture of festivals was not yet widespread, and many big-name artists that everyone knows will perform.

For music fans heading to a destination, changes in the local weather and climate are the most important thing to worry about. Based on the latest local forecasts, we have compiled pinpoint weather information for this weekend and points to keep in mind to ensure a comfortable stay.

The local weather and temperature for this weekend (September 12th and 13th) are as follows.



On September 12th, as the autumn rain front moves northward, it is forecast to rain scattered around noon, making rain gear and a thin jacket a must. The rain is expected to gradually stop and the sky will become cloudy from around the evening.



On the other hand, there is no change in the weather on September 13th, and the weather is expected to be pleasant with occasional patches of sunshine between cloudy days.
However, there is a possibility that sudden showers or torrential downpours may occur due to the autumn rain front remaining stationary. Don't forget your raincoat.
Also, be careful of sudden increases in temperature.
An autumn rain front will pass over the sky, and maximum temperatures are expected to rise compared to September 12th. Depending on the movement of the autumn rain front, the temperature may rise even further, making it a midsummer day, so be sure to take precautions against the heat.

Next, regarding the points you should be aware of when participating in the festival, please be careful of the cold nights on the 12th and 13th. The lowest temperature was 20c on the 12th and 21c on the 13th, so you may feel chilly at night and at the end of the concert. It is a good idea to bring a thin jacket that is easy to put on and take off.

Check the latest weather information frequently and stay in perfect physical condition for the best live experience.

Weather today (Friday 11th): Cool in Kanto

2026/09/11 06:35

The autumn rain front is expected to move northward and stall near the southern coast of Honshu. Additionally, a pressure trough will approach from the continent, making it easy to rain over a wide area from southern Tohoku to Kyushu. There is a risk of heavy rain mainly in the Pacific side of eastern Japan. The temperature in the Kanto region will not reach 25c during the day, so it will feel cool.



As the autumn rain front moves northward and becomes more active, rain is expected over a wide area from southern Tohoku to Kyushu tomorrow. There is a risk of heavy rain in the Kinki, Tokai, and Kanto regions, especially in the morning. In the Kanto region, the temperature does not rise easily during the day, and many places are likely to fall below 25c. Please adjust it with your clothes.
Kyushu, Chugoku, and Shikoku will experience cloudy weather. It looks like it will rain in many places in the morning. Although there is little sunlight, the humidity is high, so daytime temperatures are expected to exceed 30 degrees Celsius and become hot and humid.
Hokkaido and the northern part of Tohoku will be covered in high pressure and will be sunny in many places. Inland areas will get cold in the morning, and the temperature difference throughout the day is likely to be large. Please take care of your health.

National weekly weather from 9/11 to 9/17

2026/09/10 20:13

The autumn rain front is expected to remain stationary near Honshu. Due to the influence of the front and humid air, the weather in eastern and western Japan is likely to continue to be dull. Please be wary of heavy rain and strong rain, especially on the Pacific side.



The front will move north tomorrow, the 11th (Friday), and rain will fall over a wide area from southern Tohoku to Kyushu. There is a risk of localized heavy rain and strong rain accompanied by thunder, mainly on the Pacific side. The Kanto-Koshin region will feel cool as the temperature will not reach 25c during the day.
After tomorrow, the 12th (Saturday), the front will remain stationary near Honshu, and there will be many cloudy and rainy days from Tohoku to Kyushu. On the other hand, Hokkaido and Okinawa are expected to have many sunny days.
From Saturday the 12th to Monday the 14th, warm and humid air will flow in from the south, so many places from the Tokai to the west will experience midsummer days with maximum temperatures exceeding 30 degrees Celsius.
Due to the influence of moist air, frontal activity is expected to increase from the middle of next week. In areas that have traditionally experienced heavy rainfall, even a small amount of rain can cause disaster. Please check the latest weather information frequently.

Weather for tomorrow, the 11th (Friday): Autumn rain front moves north, warning of heavy rain mainly on the Pacific side

2026/09/10 17:52

Tomorrow, the 11th (Friday), the autumn rain front that has been moving south of Honshu is expected to slowly move north to the southern coast of Honshu. The area of rain will spread mainly on the Pacific side, and there will be heavy rain in some places, so caution is required.



Hokkaido and northern Tohoku are expected to be covered in high pressure and receive sunlight. During the day, the temperature is around 25 degrees Celsius, which is relatively comfortable in many places, but mornings and evenings can get cold, so be aware of the temperature fluctuations throughout the day.

From southern Tohoku to western Japan, the weather is expected to be prone to rain, especially on the Pacific side. Rain clouds will develop mainly in the Kinki and Tokai regions, and there is a risk of heavy rain. The peak is expected to occur in the morning in the Kinki region, and from morning to early afternoon in the Tokai region, so people need to be careful of flooding in low-lying areas, rising river waters, and landslides. Also, please be sure to give yourself plenty of time as this will be during commuting hours.
It tends to rain throughout the day in the Kanto region, so please bring rain gear when going out.

Okinawa receives sunshine, but there is a possibility of showers, so a folding umbrella is a good idea.

[Tokyo's maximum temperature changes dramatically from 22c to 32c] Beware of sudden temperature differences in Kanto (9/10 week weather)

2026/09/10 17:03

Regarding the weather for the coming week, the Kanto region will continue to have rainy days and gloomy weather over a wide area due to the influence of the autumn rain front staying south of Honshu.



Also, be careful of sudden changes in temperature this week.
The Kanto region from the 11th (Friday) to the 12th (Saturday) will be north of the autumn rain front, so the maximum temperature in Tokyo will be between 22c and 25c, a cool autumn-like temperature. On the other hand, after the 12th, the front will move north again, causing temperatures to rise rapidly in the Kanto region, and there will be days when the maximum temperature in Tokyo will exceed 30c.
There are likely to be days when the temperature changes suddenly over the next week, so please try not to get sick.

[Heavy rain in Nagoya area again tomorrow (Friday)] Peaks from early morning to commuting hours (Commentary: Weather forecaster Atsuko Miyake)

2026/09/10 14:42

In the Tokai region, the rain is expected to become heavier again, mainly in the morning tomorrow.
The ground has become quite loose due to the heavy rains so far, so
Please be careful and be on guard against landslides.



This is what the rain clouds looked like at noon today.
The rain clouds associated with the autumn rain front have temporarily moved away from Honshu.
In the Tohoku region, there are only rain clouds over the southern part of Mie Prefecture that can bring light rain, and in many other places it is drizzle or light rain.

The autumn rain front is expected to gradually move northward into tomorrow (Friday).
As moist air flows towards this front,
frontal activity is likely to increase somewhat.

Tomorrow (Friday), it looks like there will be heavy rain in some places in the Tokai region.



Rain cloud forecast.

Even in places where it is not raining right now, rain clouds are expected to gradually move northward after this.
It is expected to rain widely from the evening onwards.

There are very few places in the Tokai region where there will be heavy rain today (Thursday), but as the date changes to tomorrow (Friday), the rain will start to get heavier.

It looks like there will be an active path of rain clouds, especially from early morning until dawn tomorrow.
There is a risk of heavy rain in the Nagoya and Gifu areas.



And, during the commuting time, the area around Nagoya is expected to get heavier and the rain will reach its peak.
After this, there is a possibility that the rain clouds will stagnate at a similar point to 7:00 and 8:00.

If rain clouds form a line in a similar location, a linear rain belt may form.

Please check the rain clouds and surrounding conditions using the latest radar before going outside.

Active clouds are expected to pass over the Tokai region from 9 a.m. to noon.
Around noon, the rain will become heavier around Shizuoka Prefecture,
there is a risk of heavy rain in some cases.

At 3:00 p.m., active rain clouds will move to the eastern part of Shizuoka Prefecture, and the rain will stop in many places after the evening.

However, it has been raining quite heavily in the Tokai region so far,
causing the ground to become loose.



Even a little rain increases the risk of landslides, and the
Japan Meteorological Agency has also issued information that requires vigilance against landslides.

A [medium] warning has been announced for Shizuoka Prefecture, as there is a possibility that a landslide warning of level 3 or above will be issued.

Tonight and tomorrow, please spend your time at home in a safe place
on the second floor or above, away from the cliff.



Let's look at the weather in various places.
It will rain in many places from today evening until tomorrow.
Tomorrow (Friday), the rain will become stronger in the afternoon, and there is a risk of heavy rain.
Please be careful about how it rains.
Even when it rains, the temperature rises to around 26c.
It looks like the hot and humid weather will continue.



Weekly forecast.
The front is likely to remain stationary and the weather will continue to be cloudy and rainy.
Among these, the temperature will rise, and the 13th (Sunday) and 14th (Monday) are likely to be midsummer days with temperatures exceeding 30c.
It looks like it's going to get hot and humid, so please be careful of heat stroke.