Significant temperature fluctuations in central Tokyo; be mindful of the temperature swings.

2026/09/23 12:57

Temperatures in Tokyo have fluctuated significantly over the past few days, so please be mindful of potential health issues caused by these daily temperature swings.



On Saturday the 19th?the start of "Silver Week"?Typhoon No. 25 moved northward south of Japan. It passed along the southern coast of the Kanto region between Sunday the 20th and Monday the 21st, bringing record-breaking heavy rainfall, particularly to the southern part of Kanto. During this period, central Tokyo experienced persistent rain and high temperatures hovering around 24C, which is lower than the seasonal average.
In contrast, yesterday (the 22nd)?after the typhoon had passed and skies cleared?sunshine returned and temperatures rose sharply. Central Tokyo recorded a high of 31.6C, an increase of 7.3C from the previous day. Many other locations in southern Kanto also exceeded 30C, marking a "mid-summer day" (a day with a high of 30C or above) across the region.

Today, the 23rd, cloudy skies and rain prevail due to a trough of low pressure. At noon, the temperature in central Tokyo was 20.3C?down 9.5C from the same time yesterday?marking another significant shift in temperature.
However, the influence of the low-pressure trough will diminish tomorrow, the 24th. With sunshine expected during the day, the high is forecast to reach 30C, making it another mid-summer day.

With such drastic temperature fluctuations over the past few days, it is easy for your health to suffer. Please take care of yourself by maintaining a balanced diet, getting sufficient sleep, and incorporating moderate exercise to stay healthy.

Tropical depression east of the Philippines; forecast to develop into a typhoon within the next 24 hours.

2026/09/23 12:26

Today, Wednesday the 23rd, a tropical depression is moving across the waters east of the Philippines.
There is now a possibility that this tropical depression will intensify into a typhoon within the next 24 hours.



Generally, tropical depressions and typhoons tend to form and develop in waters where the sea surface temperature is 26.5?27 C or higher, and they are likely to gain greater strength in waters where temperatures reach 28?30 C or above. This is because higher sea surface temperatures provide a greater supply of water vapor, which serves as the energy source for these storms.
As of the 22nd, the sea surface temperature east of the Philippines was 30 C, and the tropical depression is expected to move through this area of ??warm water.



The tropical depression is forecast to move westward across the waters east of the Philippines; current projections indicate it will become a typhoon by tomorrow morning. After becoming a typhoon, it is expected to gradually shift its course toward the northwest and intensify by around the 26th, accompanied by a zone of gale-force winds (speeds of 25 m/s or higher). It will gradually approach Okinawa and the Sakishima Islands, and by around the 28th, it is predicted to reach "strong" intensity, with maximum sustained winds near its center exceeding 35 m/s.

Forecasts regarding its subsequent path involve significant uncertainty; scenarios range from the storm continuing toward the Asian mainland to it turning northward and approaching the main Japanese islands (Honshu). Please stay tuned for the latest typhoon updates.

Weather for tomorrow, Wednesday the 23rd: Sunny across a wide area, but clouds will dominate from Kanto to Kinki; watch out for passing showers.

2026/09/22 17:53

Tomorrow, Wednesday the 23rd?the final day of the long weekend?high pressure will cover much of the region near Japan, bringing sunny skies to many areas. However, due to a low-pressure system off the coast of Tokai, skies are likely to be mostly cloudy across the region stretching from Kanto to Kinki.



Northern Japan will enjoy crisp, clear autumn weather. Conditions will be ideal for going out. Please take care of your health, as there will be a significant difference between morning/evening and daytime temperatures.

Sunny, blue skies will also prevail across the Hokuriku, Chugoku, Shikoku, and Kyushu regions. Daytime temperatures are expected to reach around 30C, particularly in western Japan; please be sure to take precautions against the heat when heading out.

Meanwhile, from Kanto to Kinki, clouds will spread due to the influence of a low-pressure system and a shear line, bringing a chance of passing showers. It would be wise to carry a folding umbrella when going out on this final day of the holiday. Temperatures in the Kanto region will not rise significantly, hovering around 25C in many areas.

Weekly weather: Cloudy and rainy weather is likely to continue. Be careful of tropical depressions during Silver Week.

2026/09/14 07:46

From now on, cloudy and rainy days are expected to continue from Tohoku to Kyushu, and it seems there will be many unrefreshing weather days. In Hokkaido, the forecast is for relatively stable and mostly sunny days.



Tomorrow, the 15th (Tuesday), the autumn rain front will gradually move south, and the front's activity is expected to intensify. Rain will fall over a wide area from Tohoku to Kyushu. In some localized areas, the rain is likely to become heavy and may be accompanied by thunder. Please be very careful of road flooding and water accumulation in low-lying areas.

After that, the main island of Japan will continue to be influenced by humid air, and cloudy or rainy days are expected nationwide. Even if there are sunny periods during the day, the weather will be changeable due to the humid air, so please pay attention to changes in the sky. Because of the long-lasting rain so far, the ground may be loose in some places, increasing the risk of landslides even with a little rain. Please stay away from dangerous slopes and cliffs.

Also, there is a tropical depression in the southern sea area of Japan, which is expected to take a westerly path and travel south of the main island. It is not expected to develop into a typhoon yet, but it could significantly affect the weather in the future.

This weekend from the 19th (Saturday), Silver Week will start, but depending on the development and path of the tropical depression and the movement of the autumn rain front near the main island, the weather could change significantly. If you have plans during the holiday, be sure to check the latest weather updates regularly.

Today's weather forecast for the 14th (Mon): due to the front, it will be cloudy or rainy over a wide area. Kanto-Koshin will be sunny and perfect for doing laundry.

2026/09/14 07:00

Today, Monday the 14th, the autumn rain front will remain stationary around Honshu. Also, a cold front extending from a low-pressure system moving across the continent is expected to pass near Hokkaido.



Because of this, around Honshu, the range of rain is likely to expand from northern to western Japan on the Japan Sea side. Especially in Tohoku and Hokuriku, it is expected to be a path for developing rain clouds associated with the autumn rain front, and there may be places with heavy rain accompanied by thunder. Please be careful and stay alert for landslides, flooding in low-lying areas, and sudden rises in rivers.



On the Pacific side of western Japan, it may be sunny during the day in some areas, but there may also be localized rain or thunderstorms. Be careful of heavy rain in a short time, lightning, and strong gusts such as tornadoes.
In Okinawa, rain clouds are likely to develop due to moist air, resulting in weather with intermittent rain.

In Kanto-Koshin, many places will be sunny from the morning, making it a good day for doing laundry. Temperatures will be higher than the previous day, the 13th, and the lingering summer heat will be intense, with a forecasted 35C in Kumagaya (Saitama Prefecture). Please take measures against heatstroke.
In the mountainous areas of Kanto, there is a possibility of localized thunderstorms in the afternoon. Pay attention to changes in the sky.

National weekly weather from 9/14 to 9/20

2026/09/13 12:42

From now on, the weather will continue to be rainy and unrefreshing across the country due to the effects of the autumn rain front. The front will become more active by the end of the week, and there is a risk of heavy rain in various areas. Please check the latest weather information frequently.



The autumn rain front is expected to move northward from today's 13th (Sunday) to tomorrow's 14th (Monday), extending from the Japan Sea side of western Japan to the Tohoku region. It will rain in western Japan, Hokuriku, and Tohoku. There will be sunshine in some parts of the Pacific Ocean, but there is also a chance of rain showers in some areas. In addition, the Kanto region is gently covered by high pressure, and midsummer days are returning. Please be careful of heat stroke.
The next day, the 15th (Tuesday), the front will become more active, and rain is expected over a wide area from Tohoku to Kyushu. There is a risk of warning-level heavy rain in Hokuriku.
The front is expected to gradually move south from the 16th (Wednesday) to the 17th (Thursday), and the area of precipitation will move toward the Pacific Ocean.
The front will continue to move north-south, so it is likely that the rain will weaken and we may see periods of sunshine. However, the weather can change easily, so we recommend checking the latest forecast frequently before drying your laundry or bedding outside.

National weekly weather from 9/14 to 9/20

2026/09/13 12:42

From now on, the weather will continue to be rainy and unrefreshing across the country due to the effects of the autumn rain front. The front will become more active by the end of the week, and there is a risk of heavy rain in various areas. Please check the latest weather information frequently.



The autumn rain front is expected to move northward from today's 13th (Sunday) to tomorrow's 14th (Monday), extending from the Japan Sea side of western Japan to the Tohoku region. It will rain in western Japan, Hokuriku, and Tohoku. There will be sunshine in some parts of the Pacific Ocean, but there is also a chance of rain showers in some areas. In addition, the Kanto region is gently covered by high pressure, and midsummer days are returning. Please be careful of heat stroke.
The next day, the 15th (Tuesday), the front will become more active, and rain is expected over a wide area from Tohoku to Kyushu. There is a risk of warning-level heavy rain in Hokuriku.
The front is expected to gradually move south from the 16th (Wednesday) to the 17th (Thursday), and the area of precipitation will move toward the Pacific Ocean.
The front will continue to move north-south, so it is likely that the rain will weaken and we may see periods of sunshine. However, the weather can change easily, so we recommend checking the latest forecast frequently before drying your laundry or bedding outside.

Tomorrow, the 14th (Monday), the front moves north, rain on the Sea of Japan side of Tohoku and western Japan

2026/09/13 12:30

Today, the 13th, there is an anticyclone over the ocean far east of Japan, and eastern Japan is widely covered by this anticyclone.
It's sunny and sunny in Hokkaido, and it's summer in Sapporo.




On the other hand, the front is stationary near the southern coast of Honshu, and moist air is flowing toward the front, causing rain to fall in some places on the Pacific side of western Japan.
There is a possibility of locally heavy rain in the afternoon.

This front is expected to move slowly northward into tomorrow. Clouds are likely to spread north of the
front, and the rain is expected to gradually spread to the Sea of Japan side of western Japan, including the Tohoku region, Hokuriku,
Sanin, and northern Kyushu.




Tomorrow, the 14th (Monday), rain is expected to occur in the morning hours mainly on the Sea of Japan side of Tohoku and western Japan, and from mid-morning to early afternoon, the rain is expected to spread to the Tokai, Kinki, Shikoku, and southern Kyushu regions. As moist air continues to flow in near the front, rain clouds may develop locally and there is a risk of heavy rain.
There are areas where the risk of landslides increases, so it is important to pay attention to the latest weather information.






On the other hand, the southern Kanto region will experience sunny spells and temperatures will rise.
When the sun returns, the temperature will rise quickly and you will feel extremely hot and humid.
The damp air can make you feel stuffy and increase the risk of heatstroke. When engaging in outdoor activities, be sure to drink plenty of water, take breaks, and take good care of your physical condition.

From western Japan to eastern Japan, it feels hot and humid; in northern Japan, be careful of daily temperature differences

2026/09/13 07:04

The autumn rain front is expected to move northward today, the 13th (Sunday).



Warm air is spreading to the south of the front, and as this warm air moves northward, many places from western to eastern Japan will experience higher temperatures than the previous day (12th), making it hot and humid. Please take precautions against the heat by staying hydrated and choosing breathable clothing when going out.

On the other hand, Hokkaido and northern Tohoku, which are covered by high pressure, will experience crisp and sunny weather. During the day, the temperature will rise to around 27c mainly on the Sea of Japan side, but it looks like the weather will be relatively pleasant and sunny. However, the temperature in the morning is stronger due to radiation cooling, so the temperature difference between morning and evening and daytime increases. Please take care of your health.

The predicted maximum temperature in each region is Sapporo 27c, Sendai 24c, Tokyo 26c, Nagoya 30c, Kanazawa 31c, Osaka 32c, Kochi 31c, and Fukuoka 29c.

Weather today, the 13th (Sunday): Cloudy and rainy from southern Tohoku to Kyushu. Wear rain gear when going out.

2026/09/13 06:23

Today, the 13th (Sunday), an autumn rain front is expected to move northward from the southern coast of Honshu. As a result, there will be a lot of clouds from western Japan to eastern Japan and the southern part of Tohoku, with some areas likely to see showers.



Hokkaido and northern Tohoku, which are covered by high pressure, will have sunny days and autumn skies. However, clouds tend to gradually spread in the afternoon, especially in areas on the Pacific coast, and there are some places with showers at night, so it's a good idea to bring a foldable umbrella with you when going out.

From the southern Tohoku region to Kyushu, clouds are likely to spread due to the influence of the front, and in some places there will be heavy rain accompanied by thunder. Even though it was sunny yesterday, there are places on the Sea of Japan side where it's starting to rain today, so it's a good idea to bring rain gear when you go out.

Okinawa is sunny during the day, but there are some places where it will start to rain at night. It would be a good idea to bring rain gear if you are returning late.