Weather forecast for tomorrow, Wednesday the 14th, and the day after, Thursday the 15th: Rain expected across a wide area tomorrow.

2026/10/13 19:06

As of 3:00 PM today, Tuesday the 13th, a low-pressure system accompanied by a front is located over the Sea of ??Japan and is moving northeast. Rain clouds associated with the front can be seen spreading across the Sea of ??Japan.





This low-pressure system is expected to intensify as it moves northeast. Rain is likely tonight in the Kyushu, Shikoku, and Chugoku regions as the front passes through. Warm, moist air flowing toward the front will destabilize the atmosphere, so caution regarding lightning strikes is advised through tomorrow morning.

The low-pressure system is forecast to reach the vicinity of Sakhalin by midday tomorrow, Wednesday the 14th. Consequently, cloudy skies and rain will spread across a wide area from western to northern Japan tomorrow, with some locations experiencing heavy rain accompanied by thunder. Afterward, the weather will begin to clear from the west, with rain expected to stop in western Japan by the afternoon. While skies will clear late at night along the Pacific coast from Kanto to Tohoku, unsettled weather is likely to persist into the night along the Sea of ??Japan coasts of Hokuriku and Tohoku. As the low-pressure system intensifies, winds will strengthen along the Sea of ??Japan coast of northern Japan; particular caution regarding gale-force winds is required in the Soya region.




A low-pressure system that has moved near Sakhalin is forecast to intensify while remaining relatively stationary. Consequently, residents of Hokkaido should remain alert for strong winds and high waves on Thursday the 15th. Additionally, a mass of cold air is expected to flow into the upper atmosphere over Hokkaido.
As atmospheric conditions will remain unstable following the passage of a front, there will likely be localized, intermittent rainfall.

Tomorrow, Tuesday the 14th, a cold front will pass over Honshu; rainfall will intensify, peaking in the morning. Caution is also advised regarding strong winds and high waves along the Sea of ​​Japan coast.

2026/10/13 15:40

Tomorrow, Tuesday the 14th, a cold front extending from a low-pressure system moving across the Sea of ??Japan will pass over Honshu. Rain is expected to spread across a wide area, particularly affecting regions along the Sea of ??Japan coast.




In regions along the Sea of ??Japan coast, rainfall is likely to peak between tomorrow morning and midday. From the Sea of ??Japan side of Northern Japan through the Hokuriku region, the rain will intensify as the cold front passes, with the potential for localized heavy downpours accompanied by thunder.
Rain is also expected to spread to regions along the Pacific coast, including Tohoku, Kanto, and Tokai.

Please exercise caution regarding potential hazards such as sudden rainfall causing flooded roads or inundation in low-lying areas. Also, be alert for lightning strikes and violent gusts of wind, including tornadoes.
As the period of heaviest rainfall may coincide with tomorrow's morning commute to work or school, please stay updated on the latest traffic information.



In the afternoon, the cold front is expected to move east of Japan, and the rain should stop in many areas. However, along the Sea of ??Japan coast?specifically in southern Tohoku and Hokuriku?localized rain clouds may linger, leading to intermittent rain in some places throughout the afternoon.

Additionally, the spacing between isobars is narrowing over the area near Honshu; consequently, winds from the north to west are expected to strengthen, particularly along the coast facing the Sea of ??Japan. Along the Pacific coast, winds from the south are also likely to pick up. Please be cautious of strong winds and high waves in coastal areas.

Weather for today, Tuesday the 13th: Conditions expected to gradually deteriorate in Western Japan; a pleasant day ahead for Eastern Japan.

2026/10/13 07:14

Today, Tuesday the 13th, a low-pressure system over the East China Sea will intensify as it moves eastward, causing weather conditions to gradually deteriorate across western Japan?particularly in the Kyushu, Chugoku, and Shikoku regions. A folding umbrella is essential if you are heading out. From the Kinki region northward, the influence of moist air will likely lead to cloudy skies.
Meanwhile, eastern and northern Japan will be under the gentle influence of a high-pressure system, resulting in generally sunny or cloudy weather.
Typhoon No. 29 is moving north-northeast off the east coast of Japan, maintaining strong intensity.
While it will have little direct impact on Japan, caution is advised regarding high waves accompanied by swells.





High temperatures are expected to hover around 25C, making for pleasant weather following the holiday weekend.
Looking ahead, a low-pressure system accompanied by a front is expected to move across the Sea of ??Japan, bringing rain to a wide area stretching from the Chugoku and Shikoku regions to northern Japan; heavy rain is anticipated along the Sea of ??Japan coast. Conversely, Kyushu and Okinawa will come under the influence of a high-pressure system again, and weather conditions there are expected to gradually improve.

Strong Typhoon No. 29 moving north off the east coast of Japan; high waves expected along the Kanto coast.

2026/10/13 07:06

As of 6:00 a.m., Typhoon No. 29 is located east of Japan and is moving northeast at a speed of approximately 30 km/h.

? Typhoon No. 29 ? Tuesday the 13th, 6:00 a.m.
==================
Center location: East of Japan
Intensity: Strong
Movement: Northeast, 30 km/h
Central pressure: 975 hPa
Max. sustained wind: 35 m/s (near center)
Max. instantaneous wind: 50 m/s
==================



Typhoon No. 29 is expected to continue moving northeast while gradually weakening; as it moves further away from the vicinity of Japan, it is not anticipated to have a direct impact on the Japanese archipelago.

However, swells generated by the typhoon will reach the coast, resulting in continued high waves in areas stretching from the Pacific coast of southern Tohoku down to the Izu Islands. As of 6:00 a.m., high-wave advisories have been issued for regions ranging from Fukushima Prefecture through Ibaraki and Chiba Prefectures to the Izu Islands. Since high wave conditions are expected to persist until late tonight, those engaging in marine leisure activities should remain cautious and not let their guard down, even if the weather is sunny.

Low-pressure system to form over the Sea of ​​Japan; widespread rain expected on the 14th, with a risk of heavy rain in Hokkaido.

2026/10/12 12:05

Today, Monday the 12th (a public holiday), a low-pressure system centered near Sakhalin is extending its influence toward Honshu and the waters south of Japan.
Due to a stationary low-pressure system near the East China Sea, rain is falling in the Okinawa and Amami regions, with some observations of moderately heavy rain accompanied by thunder.



The low-pressure system in the East China Sea is expected to dissipate by tomorrow, Tuesday the 13th. Meanwhile, a new low-pressure system is expected to form over the Sea of ??Japan and move northeastward, accompanied by a front.



The front extending from this low-pressure system will pass over Honshu, bringing rain to a wide area on Wednesday the 14th.
Hokkaido faces a risk of heavy rain as the main body of the low-pressure system approaches; please stay updated with the latest information.



In Kyushu, the weather is expected to gradually improve from Wednesday onwards.

Weather for Today, Monday the 12th: A Great Day for Outings as Sunshine Prevails on the Last Day of the Long Weekend; Unsettled Conditions in Okinawa

2026/10/12 07:49

Today, Monday the 12th?the final day of the three-day weekend?the center of a migratory high-pressure system will move east of Hokkaido. However, as the system continues to cover the region, sunny weather is expected to persist across Northern and Eastern Japan.




In Western Japan, cloud cover will increase as the high-pressure system gradually moves away, but no significant deterioration in the weather is expected. There will be no widespread unsettled weather, and conditions will remain favorable for outings.
Meanwhile, clouds will spread over Okinawa, bringing a likelihood of rain.
Highs are forecast to be around 28, so it may feel somewhat hot when exposed to direct sunlight.

Northern and Eastern Japan, situated closer to the high-pressure system, will enjoy calm, sunny weather with little chance of rain.
Although the air may feel cool in the morning, the daytime will bring dry, pleasant conditions. Central Tokyo is expected to reach 27a "summer day" by Japanese standards?so please be mindful of the temperature difference throughout the day.
Today is "Sports Day"; if you engage in physical activity, please take precautions against heatstroke.



Please note that rough seas will persist along the Pacific coast from the Kanto region to the southern Tohoku region; if you are heading out for marine leisure activities, please be cautious of potential marine accidents.

Typhoon No. 29: Moving away to the east of Japan, but caution is advised regarding high waves and swells along the Pacific coast from the Kanto region to the southern Tohoku region.

2026/10/11 19:51

Typhoon No. 28 weakened into a tropical depression at 3:00 PM today, Sunday the 11th. Meanwhile, Typhoon No. 29 is moving northward in the waters near the Ogasawara Islands. Although both the tropical depression and the typhoon are tracking well away from Honshu, swells are expected to reach coastal areas along the Pacific, leading to higher waves in some places. Those planning marine leisure activities should exercise caution through tomorrow, Monday the 12th?the final day of the three-day weekend.

Typhoon No. 29 is currently located near the Ogasawara Islands, maintaining "very strong" intensity and moving north-northwest at 15 km/h. It is expected to continue moving northward over the waters east of Japan without approaching Honshu.

Typhoon No. 29 (Koguma) ? Saturday the 11th, 6:00 PM

Intensity: Very strong
Center Location: Near the Ogasawara Islands
Movement: North-northwest at 15 km/h
Central Pressure: 950 hPa
Max. Wind Speed: 45 m/s (near center)
Max. Gust Speed: 65 m/s


Although the tropical depression and the typhoon are moving far from Honshu, swells are reaching Pacific coastal areas stretching from Hokkaido to Okinawa, causing higher waves in some locations.

Tomorrow, Monday the 12th, Typhoon No. 29 is expected to move in a northerly direction near the Ogasawara Islands while maintaining its "very strong"intensity. It is expected to move east of Japan on the 13th (Tuesday) and transform into an extratropical cyclone far to the east of the country by the 14th (Wednesday).


Even if the tropical depression?formerly Typhoon No. 28?weakens, Typhoon No. 29 is moving northward toward a similar area, so rough seas are likely to persist along the Pacific coast. Please remain cautious of high waves along the Pacific coast from the southern Tohoku region through the Kanto region through tomorrow, the 12th (Monday).


Furthermore, even if wave heights do not appear extreme, waves accompanied by swells can pack unexpectedly powerful force upon impact due to their long wavelengths. Please be alert for swells generated by the typhoons along other parts of the Pacific coast as well.

Honshu is enjoying clear autumn skies and balmy, sweat-inducing weather, but conditions will turn chilly in the latter half of next week.

2026/10/11 12:50

Today, Sunday the 11th, a high-pressure system is covering much of Honshu, bringing sunny skies to many areas.
Temperatures are rising in regions where the sun is shining, creating warm, muggy conditions across a wide area of ??Honshu.




Meanwhile, a low-pressure system over the East China Sea is moving slowly toward the northwest.
Atmospheric conditions have become unstable over the Nansei Islands, where rain accompanied by thunder is currently being observed.




The low-pressure system over the East China Sea is expected to gradually dissipate starting tomorrow, Monday the 12th (a public holiday).
However, a new low-pressure system is expected to form over the Sea of ??Japan on Tuesday the 13th and move northward, accompanied by a front.
As cold air moves in aloft following the passage of this low-pressure system,
temperatures during the latter half of next week will likely drop to levels requiring long-sleeved clothing.





The season is expected to advance another step forward.
Please take care to avoid falling ill due to these sudden changes in temperature.

[El Niño Monitoring Update] Equatorial Pacific Sea Surface Temperatures Reach Record Highs

2026/10/11 12:10

On Friday the 9th, the Japan Meteorological Agency (JMA) released its latest El Ni?o monitoring report.
According to the report, the sea surface temperature in the El Ni?o monitoring region rose to 4.0C above the baseline value in September. This figure surpasses the peak value of 3.6C recorded in December 1997?previously the highest on record?making this the strongest event to date.



The El Ni?o phenomenon is characterized by sea surface temperatures in the equatorial Pacific?stretching from near the International Date Line to the coast of South America?rising above normal levels and remaining in that state for approximately one year. As the area of ??elevated sea surface temperatures expands beyond its usual range, it influences climates across the globe.
Statistically, the occurrence of an El Ni?o event tends to bring cooler summers and warmer winters to the region around Japan.
The JMA defines an "El Ni?o phenomenon" as an event where the five-month running average of the difference between the sea surface temperature in the monitoring region and the baseline value remains at +0.5C or higher for six consecutive months or more.
Additionally, a situation where the three-month average difference from the normal sea surface temperature reaches +2C or higher is sometimes colloquially referred to as a "Super El Ni?o." This is an extremely rare occurrence; previously confirmed instances took place in 1982?83, 1997?98, and 2015?16.

The Japan Meteorological Agency (JMA) forecasts that the El Ni?o phenomenon will persist through the winter, with a 100% probability predicted in the monthly El Ni?o monitoring indices.
According to the JMA's atmosphere-ocean coupled model, interactions between the atmosphere and the ocean are expected to maintain a layer of warm surface water across the central to eastern equatorial Pacific. Consequently, sea surface temperatures in the El Ni?o monitoring region are projected to remain above normal levels through the winter, eventually reaching their peak.

Weekly Weather: High pressure dominates, bringing many sunny days; weather to deteriorate after the long weekend.

2026/10/11 07:25

In the coming days, the area around Honshu will largely be under the influence of high-pressure systems. However, after the long weekend, the weather is expected to deteriorate temporarily, particularly along the Sea of ??Japan coast.



Tomorrow, the 12th (Monday)?the final day of the long weekend?will see sunny skies across many areas as high pressure dominates. However, a low-pressure system over the East China Sea will bring increasing cloud cover to Kyushu and Okinawa, with localized rain likely.

On the 13th (Tuesday), following the long weekend, the weather will take a turn for the worse in western Japan due to an approaching low-pressure system moving in from the west. Rain will gradually spread, primarily along the Sea of ??Japan coast?affecting areas such as northern Kyushu and the San'in region?and is expected to extend from the Kinki region up to Hokkaido by the 14th (Tuesday). As the front passes, rainfall may intensify temporarily in some areas.
However, the period of rain will be brief; afterwards, the region is expected to come under the influence of high pressure again, bringing sunny skies to many areas.




Temperatures across the country are expected to trend higher than average for this time of year. However, there will likely be a significant difference between daytime highs and morning/evening lows. Please take care to manage your health amidst these temperature fluctuations.
In Hokkaido and northern Tohoku, morning lows may drop below 10C in some areas. The autumn foliage will likely begin to turn color in high-altitude mountainous areas.