1st Cherry Blossom Bloom Forecast: Will this year be normal or early blooming Forecast for Tokyo on March 21st

2026/02/16 21:56

Our company Sunny Spot will announce the first cherry blossom bloom forecast.

From now on, temperatures will rise over the three-day weekend this weekend, making it warmer than normal in spring.
Then, as warm air tends to flow into Japan until March 2nd (Monday), the Japan Meteorological Agency has issued an "early weather advisory regarding high temperatures," and temperatures are expected to be significantly higher than normal in northern Japan and the Kanto region.
As a result, the flowering date is expected to be around normal or earlier than normal across the country, and in northern Japan, the flowering date is expected to be approximately one week earlier than normal.



The top blooming area in 2026 is expected to be around March 21st in Kochi in western Japan and Tokyo in eastern Japan. By the end of March, cherry blossoms will be blooming widely from Kyushu to Kanto, and there will be some places where the cherry blossoms will be in full bloom.
In some places in the Hokuriku and Koshin regions, the flowering date may be delayed to early April.

In April, the cherry blossom front will move towards Tohoku, and the cherry blossoms are expected to start blooming in Sendai in early April and in Aomori in mid-April. The cherry blossom front is expected to reach Hokkaido in late April, and cherry blossoms are expected to bloom in Wakkanai and Abashiri in early May.

In the Kanto region, snow will fall mainly along the mountains from tonight until dawn tomorrow.

2026/02/16 19:30

In the vicinity of Japan, the atmospheric pressure is high in the west and low in the east, between a low pressure system moving east-northeast around the Kuril Islands and a high pressure system overhanging the continent.
Also, in the sea near the Izu Islands, a shear line is formed, where the northeast wind that wraps around the Chubu Mountains collides with the northwest wind. Due to this shear line and the cold air in the sky, clouds are likely to develop in the Kanto region starting tonight, and snow and rain are expected.

Currently, it is raining in some places in the northern Kanto region and Chiba Prefecture. After this, the temperature will drop late at night, so rain and snow will gradually spread from early evening today, the 16th (Monday) to early morning on the 17th (Tuesday).




There will be snowfall in some places, especially along the mountains and in the mountains of the Tama region of Tokyo and western Kanagawa Prefecture.
There is a possibility that there will be snow in the 23 wards of Tokyo, and it is not expected that it will snow, but if the ground temperature is lower than expected or if there is more precipitation, there is a possibility that there will be snow in the 23 wards.

Although it is expected to stop during the commuter hours on the morning of tomorrow, the 17th (Tuesday), there are some places in the mountains and inland where it will get colder in the morning, so please be careful of icy roads.


[Snow Forecast]
The 24-hour snowfall expected from 18:00 on the 16th to 18:00 on the 17th is high in some places.
Northern Tama, Tokyo 1cm
Southern Tama, Tokyo 1cm
Western Tama, Tokyo 3cm
Eastern Kanagawa Prefecture 0cm
Plains in western Kanagawa Prefecture 1cm
Mountains in western Kanagawa Prefecture (over 500 meters above sea level) 5cm

[Weather from the beginning of the week] The cold will return in the first half of the week, but the next weekend will also be full of spring warmth

2026/02/16 11:30

To the north of Hokkaido and south of Shikoku, there is a low pressure front accompanied by a front that is moving northeast and east.
On the other hand, there is an anticyclone on the continent that is spreading toward the East China Sea.

Today, warm air entered the area around Japan, and during the day it was as warm as late March to late April, with temperatures nationwide being more than 6 degrees Celsius higher than normal.





Tomorrow, the 16th (Monday), a developed low pressure system will move toward the Sea of Okhotsk.
Also, a low pressure system moving eastward south of Japan will move over the southeast coast of Kanto.
A dominant high pressure system will extend eastward from the continent, so a winter-like pressure distribution is expected.
The daytime temperature will drop into the day after tomorrow as cold air replaces it from the north.
Tomorrow, there will be snow and rain in many places along the Sea of Japan coast from Hokkaido to the San'in region.
Although it is sunny in many places on the Pacific side, it tends to rain in the Kanto region from the evening onwards due to the influence of a weak atmospheric pressure trough.
There may be some snow mixed in for a while.
Please be aware that it will snow at night along the mountain, and there is a possibility of snow accumulation.


Then, the weather over the weekend is




On the Pacific side, there are many sunny days towards the middle of the week, and the temperature will drop around the 17th (Tuesday), and the cold will return.
There will be more cloudy days in the second half of the week, but temperatures will rise and many places will experience spring-like warmth again over the weekend.
Please take care of your health as there are large differences in temperature from day to day and between morning and evening.
Also, please be careful when handling fire as there are many places where the air is dry.

On the Japan Sea side, there are many days when it snows and rains, mainly from Hokkaido to Hokuriku.
A low pressure system and front are expected to pass through northern Japan on the 18th (Wednesday) in the middle of the week.
Please be aware that there is a risk of stormy weather with increasing snow and wind, especially on the Sea of Japan side of northern Japan.
Temperatures will rise over the weekend, bringing the warmth of spring.

Temperatures are rising in various parts of the country and spring is in full swing. In areas with heavy snowfall, be careful of melting snow.

2026/02/15 07:08

Today, the 15th (Sunday), a low pressure system and front are expected to move north of Hokkaido. As warm air flows towards this low-pressure system, temperatures are expected to rise across the region, bringing the weather into the early spring weather.



During the day, it will be as sunny as late March to early April in many places, and you won't need a jacket. There are many places where it will be a good day to go out. It's going to be a day with a big difference in temperature between morning and evening and during the day, so please be careful of the temperature difference.
Also, snow melting is expected to progress in snowy areas. Be careful of snow melting disasters such as falling snow from roofs, deteriorating road conditions, and avalanches.

From night onwards, it gets colder as cold air flows into northern Japan. If you are returning home late, please don't forget to take measures to protect yourself from the cold.

#Highest temperature in each region (relevant season)
+Sapporo: 9c (same as early April)
+Sendai: 18c (same as late April)
+Tokyo: 19c (same as mid-April)
+Nagoya: 1 7c (same as late March)
+Kanazawa: 16c (same as late April)
+Osaka: 17c (same as early April)
+Kochi: 20c (same as late April)
+Fukuoka: 17c (same as late March)

Today's weather on the 15th (Sunday): It's raining in some places in Hokkaido, but in Tohoku and south, the sun is shining and it's a cheerful spring day.

2026/02/15 06:36

Today, the 15th (Sunday), a low pressure system accompanied by a front is expected to pass near Hokkaido. Hokkaido is prone to rain, so you need to be careful about melting snow. South of Tohoku, there are many places where it will be sunny during the day, and the temperature is likely to rise.



Due to low pressure and fronts, there will be places in Hokkaido where it will fall as rain instead of snow during the day. As the snow continues to melt, you need to be careful about snow falling from roofs and deteriorating road conditions. By night, the atmospheric pressure will be in a winter-like pattern, and snow will likely spread along the Sea of Japan side.

It will be sunny in many places from Tohoku to Kyushu, and the temperature is likely to rise during the day. It will be the first warmth of spring in many places. It seems like it will be a comfortable experience to spend the day without needing a jacket. The temperature difference between morning and evening and during the day is large, so you need to be careful about the temperature difference.
In Tohoku and Hokuriku, there are places where it starts to rain at night, so if you are returning late, it is best to bring rain gear.

Okinawa also has many places where the sun can reach. However, please be aware of changes in the sky as there is a possibility of showers overnight.

Tomorrow the temperature will rise even more than today. The weather is sunny nationwide from late March to late April.

2026/02/14 17:51

In the south of Japan, there is a high-pressure system moving eastward and spreading around Honshu.
On the other hand, there is a low pressure system near China's Northeastern District and Primorye Province that is moving northeast, and there is a low pressure system in the East China Sea that is moving southeast, and a front is extending near Kyushu.

Currently, it is sunny in many places, especially in northern and eastern Japan, but clouds are spreading over the Chugoku, Shikoku, and Kyushu regions, and it is raining in some places.



Many places were sunny today, and it was warm throughout the country during the day.
Especially from Tohoku to the Chugoku region, temperatures were higher than normal in many places, with many places being over 6 degrees Celsius.



A low pressure system and front will approach from the west tomorrow, and a low pressure system will pass through northern Hokkaido.
Another low-pressure system is expected to move east-southeast from the East China Sea over Kyushu and move east over the southern seas of western Japan.



As a result, it is snowing and raining in some places in Hokkaido.
There will be places in Tohoku where it will rain and snow, mainly on the Sea of Japan side.
There will be many sunny places in eastern Japan.
In western Japan, there will be rain in the morning, mainly in Kyushu and Shikoku, but
the weather will gradually improve and it will be sunny in many places in the afternoon.



During the day, it will be even warmer in many places than today, with daytime temperatures expected to rise to around 20c in some places.
It looks like the weather will be sunny nationwide from late March to April.
Please be aware that in areas with heavy snowfall, melting snow can worsen road conditions and increase the risk of falling snow and avalanches.

Although the cold temporarily eases, in the latter half of the period, extremely strong cold air moves southward, and a blizzard occurs in Hokkaido (weather summary from February 1st to February 7th, 2025)

2026/02/14 06:38

This is a summary of the weather for this period (February 1st to February 7th, 2026)

#Summary of the weather for this period (February 1st to February 7th)
At the beginning of the period, winter-like pressure patterns continued around Honshu, but the cold air gradually retreated northward, and from around the 4th to the 6th, it became susceptible to warm influences from the south. As a result, average temperatures nationwide tended to be at or slightly above normal, with some places in Hokkaido, such as Asahikawa and Kushiro, exceeding normal by more than 2 C.

Precipitation was higher than normal, mainly in the Sea of Japan side of northern Japan, which was susceptible to the effects of low-pressure systems, and mainly in Aomori, which experienced record heavy snowfall. Areas on the Pacific side of Tohoku and on the Pacific side west of Kanto showed a tendency for significantly less rainfall, and there were many locations where the total precipitation for the period was 0 mm.

Sunshine hours were below normal on the Sea of Japan side of northern Japan and Hokuriku, where days of snow and rain were likely to continue due to winter-like atmospheric pressure patterns. In addition, the area around the Sakishima Islands was susceptible to the influence of fronts, and temperatures tended to be well below normal. In many areas of the Pacific Ocean west of the Kanto region and Okinawa, temperatures were at normal levels.



[About the weather during this period]
#Characteristics of pressure distribution
On the 1st, the winter-like pressure distribution continued around Honshu from the previous day. A new low pressure system has formed west of Hokkaido and is slowly moving south. On the 2nd, winter-like atmospheric pressure patterns will continue around Honshu. A low pressure system is moving southeast across the western Sea of Japan. Another low pressure system moves eastward east of Kanto. On the 3rd, the center of high pressure moved eastward from central China to the East China Sea, and the area around Honshu was covered by high pressure from the west. On the 4th, the center of the high pressure system moved south of Honshu, and the winter-like pressure pattern loosened. In northern Japan, a low-pressure system is moving eastward from the Sea of Okhotsk to the waters near the Chishima Islands. On the 5th, a low pressure system accompanied by a front moved east-northeast across the Sea of Japan while developing. A front extending from a low pressure system gradually approaches northern Japan. Later in the evening, another front emerged in the East China Sea. On the 6th, a low pressure system accompanied by a front rapidly developed and moved toward the Sea of Okhotsk, while the front stalled south of Honshu. A strong winter-like pressure pattern formed around Honshu over the 7th, and extremely cold air, with temperatures below -36 C at an altitude of approximately 5,500 meters, gradually flowed into the skies over northern Japan.

#Precipitation
On the 1st, snow continued to fall mainly on the Sea of Japan side due to a winter-like atmospheric pressure pattern. In Aomori, snowfall increased by 7 cm between noon and 1 p.m., setting a new record for snowfall and breaking the record for February. On the 2nd, snow and rain continue from northern Japan, mainly in the Sanin region. The trough in the sky caused rain and snow in western Japan and the Pacific side of eastern Japan. On the 3rd, as a high pressure system emerged from the west, the snow on the Sea of Japan side gradually eased, and by the 4th, the snow was limited to only Hokkaido and parts of Tohoku. On the 5th, due to the effects of a low pressure system and front, snow and rain fell in northern Japan through the night. Near Hokkaido, the wind gradually strengthened on the Sea of Japan side, and a blizzard warning was announced in Rumoi City and other areas late at night. Southern Kyushu and the Nansei Islands experienced rain due to the front, and heavy rain of 27.5 mm/h was observed in Onoma, Yakushima Town, Kagoshima Prefecture. On the 6th, a rapidly developing low pressure system caused a blizzard in Hokkaido. At Cape Soya, a maximum instantaneous wind speed of 35.6 m/s was observed. On the 7th, JPCZ headed for the San'in area, and snow became heavier from Hokuriku to the San'in area. In the Kanto region, snow fell even in flat areas due to localized fronts.

#Temperature
On the 1st, the whole country experienced mid-winter cold due to the chill in the sky. Temperatures were below normal on the Sea of Japan coast from northern Japan to the San'in area. In Naze, the flowering of Hikanzakura was announced. On the 2nd, the weather continued to be cold, mainly in Kia Japan, with snow and rain. The highest temperature in Sapporo was -0.2c, a midwinter day. In the morning of the 3rd, the temperature intensified mainly inland due to radiation cooling, and in Etanbetsu, Asahikawa City, Hokkaido, the lowest temperature in the morning was -26.7c. In Naha, it was announced that Hikanzakura trees are in full bloom. On the 4th, the first day of spring, the cold air in the sky recedes and temperatures rise in various places. Temperatures have risen significantly in northern Japan and Hokuriku, reaching 6.2c in Aomori. In Takada, Joetsu City, Niigata Prefecture, the temperature rose to 9.0c, the same level as early March. On the 5th, warm air easily entered from the south, causing temperatures to rise across the region for the same time as the day before. In Tokyo, the temperature rose to 13.8c, which is as warm as mid-March. On the 6th, northern Japan experienced midwinter cold due to the effects of cold air associated with a low pressure system. The Kanto region and westward were blanketed in warm air, but winter-like pressure patterns strengthened over the next day, the 7th, and the country returned to the bitter cold of midwinter.

One-month forecast: The season quickly turns to spring; the Pacific side continues to experience drought

2026/02/13 22:11

On the 12th (Thursday), the Japan Meteorological Agency announced the latest one-month forecast, which shows the weather outlook for the next month.



The monthly average sea level pressure is expected to be lower than normal in the Sea of Japan, but relatively higher than normal in the East China Sea and south of Japan. Temperatures at an altitude of approximately 1,500 meters are predicted to be higher than normal, mainly in northern and eastern Japan. For this reason, northern and eastern Japan will be less susceptible to the effects of cold air. Temperatures are expected to be lower than normal in the East China Sea and south of Japan, and areas near Okinawa and Amami are expected to experience periods of cold air.

In the first half of the period, especially around the 15th (Sunday), temperatures are expected to be higher than normal across a wide range of northern and western Japan, with some places likely to be as warm as April. However, around the 17th, cold air is expected to temporarily move south, and the temperature will likely fluctuate significantly, so please be careful about your physical condition.



After that, temperatures will continue to be higher than normal, mainly from northern to eastern Japan. On the same day, the Japan Meteorological Agency announced ``early weather information regarding high temperatures,'' predicting that Hokkaido will experience ``significantly high temperatures'' starting around the 19th, and areas from Tohoku to the Tokai region starting around the 20th and 21st. In areas with heavy snowfall, such as from northern Japan to Hokuriku, rising temperatures may cause the snow to melt rapidly, increasing the risk of avalanches, especially in mountainous areas, so please be careful.
In areas on the Pacific coast, such as the Kanto and Tokai regions, cedar pollen is more likely to scatter when the weather clears and the temperature rises, so it's best to take precautions early.



Western Japan and the Pacific side of eastern Japan are expected to continue to experience low rainfall, and are likely to continue to suffer from water shortages. Please try to conserve water as much as possible. Also, as the drying tendency continues, you need to be careful when handling fire.

Enjoy the warmth of spring on Saturdays and Sundays, and be careful of melting snow and pollen scattering.

2026/02/13 13:41

Today, the 13th (Friday), there will be high pressure from the south, and many places across the country will be sunny. Warm air is flowing in easily, and the temperature will likely be higher than yesterday in many places.
On the Sea of Japan side of Hokkaido, there are places where it is snowing. On the other hand, there is a low pressure system moving east over the southeast coast of the Kanto region, and due to the influence of moist air, there are many clouds in parts of the Kanto region.



After this, the Kanto region will gradually become clearer in the afternoon. Snow will continue to fall in some places on the Sea of Japan side of Hokkaido. On the Japan Sea side of Tohoku, rain and snow are expected to start falling in the evening.



Tomorrow, the 14th (Saturday), a front will pass from the continent through the East China Sea near Kyushu, and it will gradually start raining in Kyushu from the afternoon. There are likely to be some areas where the rain will become heavier, especially late at night.
In other areas, it will be sunny or cloudy, and it will be sunny from mid-March to late March.

The next day, on the 15th (Sunday), a low pressure system accompanied by a front from the Sea of Japan is expected to pass near Hokkaido and head toward the Sea of Okhotsk. Rain and snow will fall on the Sea of Japan side of northern and eastern Japan. Due to the influence of warm, humid air flowing towards fronts and low pressure systems, there will be places in Hokkaido where it will rain instead of snow. Please be careful of snow melting disasters due to sudden temperature rise.



Temperatures will rise nationwide around the 15th (Sunday), and it will be as warm as March to early April.
In areas with heavy snowfall, be careful of avalanches caused by melting snow and snow falling from roofs.
Also, as the temperature suddenly rises and it becomes the warmth of spring, there will be places in western and eastern Japan where cedar pollen will start to scatter. If you are sensitive to pollen, please take precautions as soon as possible.




At the beginning of the week, winter cold will return in many places from around the 17th (Tuesday).As a low pressure system will pass around the 18th (Wednesday), snow and rain will fall mainly in northern and eastern Japan.

Rapidly developing low pressure system; blizzard warning in Hokkaido; widespread due to strong winter-like pressure distribution [Marine Summary 2/1-7]

2026/02/12 10:53

Due to the rapidly developing low pressure system, blizzard warnings were issued in some parts of Hokkaido.
The area around Japan often experienced winter-like atmospheric pressure patterns, and the gradient of atmospheric pressure became large, making the sea near Japan wide and barren.



#Pressure distribution and waves
On the 1st and 2nd, a winter-like pressure distribution occurred near Japan.
Also, the front from south of Okinawa to south of Japan moved eastward.
Winds strengthened across the country, and waves rose in the Sea of Okhotsk, the Sea of Japan, the eastern part of Japan, and the waters near the Sakishima Islands.
On the 3rd, the winter-like pressure pattern eased from the west, but a large gradient in the pressure continued, and waves rose from east of Japan to south of Okinawa and the East China Sea.
From the 6th to the 7th, a low-pressure system near the Soya Strait rapidly developed and moved toward the Sea of Okhotsk, causing a blizzard warning to be issued in some parts of Hokkaido.
A winter-like pressure pattern gradually became stronger around Japan, with storms occurring in the northern and central parts of the Sea of Japan, in the Yellow Sea on the 6th, and in the east of Japan and the East China Sea on the 7th.



#Sea surface temperature
Sea surface temperatures in the Japanese waters continued to be at or below normal in the northern part.
In the central and western regions, sea areas remained at or slightly above normal.
In the East China Sea, slightly higher waters have expanded.
The southern part of Japan was at a normal level, and the sea area from the Tokai coast to the Kanto coast continued to be slightly lower than normal.
Off the coast of Sanriku, the sea area continued to be higher than normal or significantly higher, with temperatures up to 4 C higher than normal.
The temperature off the southeast coast of Hokkaido was also higher or significantly higher than normal, with temperatures up to 4c higher.
In the Sea of Okhotsk, sea ice (black shaded area) is moving south.