Weather for tomorrow, Monday the 9th: Expect intensifying snow in Hokkaido; rain is set to spread across a wide area of ​​Honshu.

2026/11/08 12:38

Tomorrow, Monday the 9th, much of Honshu is expected to see unsettled weather?cloudy skies and widespread rain?due to the influx of moist air. Meanwhile, a strong cold air mass (for this time of year) is moving into Hokkaido, bringing the risk of heavy snowfall in some areas; caution is advised.

Rain to spread across Honshu starting at dawn
On Monday the 9th, a low-pressure system moving eastward from the Sea of ??Japan and the East China Sea is expected to dissipate by the evening. Additionally, a separate low-pressure system is forecast to form near the Izu Islands tomorrow morning and move northeastward while intensifying.



As moist air flows into the region, rain will begin to fall around dawn in the Tohoku region and along the coast of the Kanto region. The rain will subsequently spread, covering a large portion of Honshu. Please remember to bring rain gear if you are heading out.

Strong cold air over Hokkaido; risk of heavy snow, especially along the Sea of ??Japan coast
A strong cold air mass?with temperatures around -30C at an altitude of approximately 5,000 meters?is moving into Hokkaido. Snow will fall primarily in the northern part of the region during the morning, with the snowy area expected to expand throughout the afternoon. Snow will become widespread, particularly along the Sea of ??Japan coast, and may intensify in some locations. Please be aware that a rapid accumulation of snow could cause disruptions to transportation.

A low-pressure system will pass through tomorrow, Monday the 9th; from Wednesday onward, the region will be under the influence of a high-pressure system.

2026/11/08 07:27

Today, Sunday the 8th, the strong winter-type pressure pattern will gradually ease as the day progresses. While clouds are likely to linger along the Sea of ??Japan side, the stormy weather in northern Japan is expected to settle down for the time being. On the Pacific side, skies will be largely clear, with no risk of rain.



Tomorrow, Monday the 9th, a low-pressure system will pass near Honshu, bringing rain to a wide area of ??the main island. In Hokkaido, there is a possibility of snow.



From Wednesday onwards, eastern and western Japan are expected to come under the influence of a high-pressure system. Expect clear skies, with colder temperatures during the morning and evening hours. This week, even in Tokyo, minimum temperatures may drop into the single digits, signaling another step forward into the season.



As the temperature difference between day and night becomes more pronounced, please be sure to manage your warmth by layering clothing, and take care to avoid catching a cold.

Today, Sunday the 8th, the winter-type pressure pattern eases; ideal weather for outings on the Pacific side.

2026/11/08 07:07

Yesterday, Saturday the 7th, a strong winter-type pressure pattern brought widespread rain and snow to the Sea of ??Japan side of northern and western Japan. In Sapporo, Hokkaido, snowfall reached over 10 centimeters. Additionally, due to intensifying winds, storm warnings were issued for coastal areas in northern Japan.



Today, Sunday the 8th, a low-pressure system near the Sea of ??Okhotsk is moving northeast, and the winter-type pressure pattern is expected to gradually ease as the day progresses. However, a storm warning remains in effect for the Hidaka region of Hokkaido, and strong wind advisories are in place for coastal areas of northern Japan. Please be cautious of hazards such as fallen trees caused by the strong winds.



A high-pressure system is extending over the vicinity of Honshu, bringing clear skies to the Pacific side of eastern and western Japan, with no expected deterioration in the weather. It looks to be an ideal day for outdoor activities.



On the Sea of ??Japan side of northern Japan, some areas may still see rain or snow through the morning, but conditions are expected to gradually improve in the afternoon. In parts of Hokkaido, there is a risk of blizzards; please be mindful of poor visibility and potential disruptions to transportation.

Today, Saturday the 7th: Dry air across the Pacific side of Eastern Japan — risks to watch out for and how to prepare

2026/11/07 18:03

Today, Saturday the 7th, a "winter-type" pressure pattern has set in. While the Pacific side of eastern and western Japan enjoyed clear skies, the air has become dry across a wide area. In the Kanto-Koshin region, humidity levels in some areas have dropped below 30%. As we move into this season, it is important to remain vigilant regarding both personal health and disaster prevention.

Increased viral activity and weakened mucosal defenses
When humidity falls below 40%, viruses such as those that cause influenza or norovirus can remain airborne for longer periods. Furthermore, as the mucous membranes in the nose and throat dry out, the body's ability to expel invading viruses is compromised.

Internal dehydration
In winter, when we sweat less, we may not feel thirsty, making it easy to fall into a state of "hidden winter dehydration" without even realizing it. Sleeping with heating appliances turned on can further lower room humidity, leading to additional fluid loss from the body. Additionally, the skin's moisture-retention capacity and protective barrier function decline, which can cause itching and skin irritation; therefore, conscious hydration and moisturizing are essential.

Fire risks
Prolonged dry conditions cause materials like wood, tatami mats, and dry grass to lose their moisture, significantly increasing the risk of fire. Fires can be caused by more than just the improper disposal of cigarettes or the misuse of heating equipment (such as kerosene or electric heaters). Another potential cause is the "tracking phenomenon"-where dust that has accumulated around electrical outlets absorbs moisture, leading to ignition. During the colder months, condensation can cause dust to become damp, so extra caution is advised.

Summary
As the air becomes drier in the coming season, the risks of health issues and fires increase. Stay safe and comfortable during this dry period by keeping indoor air humidified, staying well-hydrated, and regularly checking potential fire hazards-such as heat sources and electrical outlets.

Typhoon No. 32 (Champaka) has formed—the first such occurrence in 32 years (since 1994); the Ogasawara Islands should prepare for potential impacts next week.

2026/11/07 14:49

At 12:00 PM today, Saturday the 7th, a tropical depression near the Mariana Islands developed into Typhoon No. 32 (Champaka). This is the first time a 32nd typhoon has formed in this century, and the first such occurrence in 32 years, since 1994.



The typhoon is expected to continue moving in a generally westward direction for the time being, but it is forecast to turn and head eastward south of Japan. It may affect the Ogasawara Islands next week, so please keep a close watch on its future path.

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Typhoon No. 32 ? Saturday the 7th, 12:00 PM
Center location: Mariana Islands
Size classification: -
Intensity classification: -
Movement: West at 35 km/h
Central pressure: 1002 hPa
Maximum sustained wind speed: 18 m/s (near the center)
Maximum instantaneous wind speed: 25 m/s
--------------------------------

According to the forecast track, the typhoon is expected to continue moving westward until around Monday the 9th, at which point it is projected to make a sharp U-turn and shift its course toward the east.



By that time, it may intensify and develop a zone of violent winds.
Depending on its path, it could approach the Ogasawara Islands?including Chichijima and Hahajima?around Tuesday the 10th to Wednesday the 11th, potentially bringing severe weather.

Please stay updated with the latest information regarding this typhoon.

Today, Saturday the 7th, is *Rittō* (the start of winter according to the traditional calendar). What will the weather be like tomorrow, Sunday the 8th?

2026/11/07 11:55

Today, Saturday the 7th, marks "Ritt?" (the beginning of winter) according to the traditional 24-solar-term calendar. In this system, winter begins today and lasts until "Risshun" (the beginning of spring) on ??February 4th. Current meteorological satellite imagery shows "cloud streets"?a phenomenon characteristic of winter?spreading across the Sea of ??Japan.



As of 9:00 a.m. today, the region around Japan is under a "winter-type" pressure pattern?characterized by high pressure over the continent and low pressure over the Sea of ??Okhotsk. A strong, cold air mass (with temperatures below 0C at an altitude of approximately 1,500 meters) has pushed as far south as the San'in region. Snow is falling, particularly along the Sea of ??Japan side of Hokkaido; in Sapporo, snow accumulation has already reached 10 cm, and snow is also being reported in mountainous areas across eastern and northern Japan.





Furthermore, strong winds are affecting the entire country, with storm and high-wave warnings issued for several areas, primarily in northern Japan. Please be cautious of strong winds nationwide, and remain highly alert for high waves if you are along the Sea of ??Japan coast.

Weather for Tomorrow, Sunday the 8th
The winter-type pressure pattern is expected to persist through tomorrow, Sunday the 8th. While high-pressure systems will gradually spread across western and eastern Japan, cold air will continue to flow into northern Japan.



During the morning, snow is likely in northern Hokkaido, along the Sea of ??Japan coast, and in the northern part of the Tohoku region; meanwhile, overcast or unsettled weather will persist along the Sea of ??Japan coast from eastern to northern Japan. By the afternoon, the rain and snow are expected to gradually taper off. In western Japan and along the Pacific coast of eastern Japan, the day should be pleasantly clear. However, from the early evening onwards, the influence of moist air will likely cause clouds to spread.

What is a snow accumulation warning? Prepare for power outages due to broken power lines, etc.

2026/11/07 07:23

Due to the influence of cold air, the number of regions experiencing snowfall-particularly in northern Japan-is on the rise. Today, Saturday the 7th, snow is falling in various areas, including Hokkaido, the Tohoku region, and the mountainous parts of the Hokuriku region. The Japan Meteorological Agency (JMA) has also issued "snow accretion advisories" for certain areas.



Do you know when a "snow accretion advisory" is issued, or what kind of hazards it warns against? Here, we explain what these advisories entail.

# What is a snow accretion advisory?
A snow accretion advisory is issued by the Japan Meteorological Agency when significant snow accumulation (adhering to structures) is expected to potentially cause disasters. Specifically, it is issued when there is a risk of damage such as the snapping of power lines or the collapse of electricity transmission towers due to the weight of accumulated snow.
This type of hazard is most likely to occur when snow falls while the air temperature is near 0C.



# Hazards caused by snow accretion
When snow accumulation causes power lines to snap, it can lead to widespread power outages. Furthermore, the weight of the snow can cause electricity transmission towers to collapse, or lead to broken tree branches and fallen trees-all of which are extremely dangerous.
Additionally, fallen trees can sever power lines or obstruct transportation.
In agricultural settings, there is also a risk that structures like plastic greenhouses may collapse, or that the branches of fruit trees may break.

# Why does snow accretion occur near 0C?
Unlike snow that falls when temperatures are well below freezing, snow that falls when the temperature is near 0C tends to be "wet snow." This type of wet snow has the characteristic of being heavy and prone to adhering to objects such as power lines, utility towers, and trees. Consequently, the accumulation of snow can lead to power line breakage, the collapse of utility towers, and the breaking or falling of trees.

# Important Precautions
If you encounter a downed power line, do not approach it-it is extremely dangerous. Instead, contact the relevant authorities or the utility provider. In preparation for potential power outages, ensure you have items such as flashlights, charged mobile batteries, and spare batteries on hand. Additionally, keep warm clothing or gear ready in case your heating system becomes unusable.
Never approach utility towers or trees that appear to be leaning.

Furthermore, when wet snow accumulates on roads, it turns into a slushy, "sherbet-like" consistency. Please exercise extreme caution, as this creates slippery conditions for both pedestrians and drivers.
When a warning for snow accumulation (on structures or trees) is issued, prioritize your personal safety and take proactive steps to prepare in advance.

[One-Month Forecast] Temperatures will be low nationwide at the start of the period; subsequently, they will be higher across eastern and western Japan, with significant fluctuations.

2026/11/06 21:22

On Thursday the 5th, the Japan Meteorological Agency (JMA) released its one-month forecast covering the period from November 7 to December 6.

Over the coming month, the period will begin with temperatures dropping across northern and western Japan due to the influence of cold air; in particular, the Sea of Japan side of Hokkaido may see significantly higher-than-average snowfall.
Subsequently, eastern and western Japan are likely to be covered by warmer air, leading to higher temperatures and greater variability.
Additionally, the Pacific side of western Japan is expected to be susceptible to the influence of low-pressure systems and fronts, with precipitation likely to be near or above average.



The one-month average sea-level pressure (left chart) is expected to be higher than normal near the Primorsky Krai (Maritime Province) and south of Okinawa. Conversely, with relatively lower pressure stretching from central China to western Japan, moist air from the south is likely to flow into the region. Consequently, areas including the Pacific side of western Japan are expected to be prone to the effects of low-pressure systems and fronts.

Temperatures at an altitude of approximately 1,500 meters (right chart) are expected to be higher than average, particularly across eastern and western Japan; these regions-extending toward Okinawa and the Amami Islands-are likely to be covered by warmer air. Meanwhile, a slight negative anomaly is indicated for the Sea of ??Okhotsk, suggesting that northern Japan, in particular, may experience periods influenced by cold air.


This forecast covers the expected average temperatures, precipitation, and sunshine duration for the next month, along with weekly average temperature projections (including the probability of occurrence).

In Northern Japan, temperatures are expected to be significantly lower at the start of the period due to the influence of cold air. In particular, areas along the Sea of Japan in Hokkaido may see snowfall totals well above the seasonal average.

In Eastern and Western Japan, temperatures will be low initially, but the region will subsequently come under the influence of warmer air. By the second week, temperatures could shift to become significantly higher, indicating a period of substantial temperature fluctuation.

Along the Pacific coast of Western Japan, the influence of low-pressure systems and fronts is expected to result in precipitation levels that are near or above average, while sunshine duration will likely be near or below average.

In the Okinawa and Amami regions, temperatures over the next month are expected to be higher than average, as the area will frequently be covered by warm air-with the potential for particularly high temperatures during the second week.

At the beginning of this period, much of the country will be affected by cold air, leading to lower temperatures. Please complete your winter preparations now and ensure you have warm outerwear or coats ready.
Additionally, heavy snowfall is expected, especially along the Sea of Japan side of Hokkaido; please equip your vehicle with winter tires and prepare for snowy road conditions. A strengthening "winter-type" pressure pattern could lead to heavy snow or blizzards, potentially disrupting transportation-please stay updated with the latest information.
In Eastern and Western Japan, temperatures may rise significantly later in the period. Keep an eye on daily weather and temperature forecasts, and adjust your clothing accordingly to stay healthy.

[Temperatures to hover around 15C at night] A rock festival will be held in Makuhari, Chiba Prefecture, tomorrow, Saturday the 7th—be prepared for cooler temperatures in the evening.

2026/11/06 16:59

A major rock festival is taking place this Saturday, the 7th, at an outdoor stadium in Makuhari, Chiba Prefecture. Hosted by a popular punk-rock band, the event is generating significant buzz, with a lineup that includes major superstars and international acts.

In preparation for the festival, we have compiled the local weather forecast for this weekend, along with some tips to help you stay comfortable at the venue.



Weather for Saturday, the 7th
The forecast for Saturday, the 7th, calls for a mix of sun and clouds, with a high of 21C and a low of 13C-conditions that may feel a bit chilly for an outdoor festival.

Tomorrow, the 7th, a "west-high, east-low" pressure pattern will develop over Japan, bringing clear skies and dry air to the Kanto region. Additionally, an influx of cold air from above, combined with northerly winds, will cause temperatures to drop significantly compared to today, Friday the 6th. While the daytime high in Makuhari, Chiba, will be a comfortable 21C, temperatures are expected to fall to around 15C as the evening approaches, leading to a noticeable chill.



Tips for Attendees
During the day, temperatures will hover around 20C, making for a comfortable environment. While short sleeves might feel a bit chilly, wearing a long-sleeved shirt or thermal base layers (such as Heattech) should be sufficient.
However, by the time the final acts take the stage in the evening, the temperature will drop to around 15C; it will be difficult to stay comfortable if you are underdressed. It's a good idea to bring an extra layer to wear, just in case. Please take care to ensure that temperature fluctuations don't affect your health.



Keep a close eye on the latest weather updates, and make sure you're in great shape to enjoy the best possible live concert experience!

Weekly Weather: Risk of severe weather in Northern Japan through around the 8th; cold rain expected from the Tohoku region to Kyushu early next week.

2026/11/06 16:55

Through around the 8th, the Sea of ??Japan side of Northern Japan can expect rough weather. Even in regions from Kanto westward, where skies will be clearer, there will be significant day-to-day fluctuations in temperature.



Tomorrow, Saturday the 7th, a "west-high, east-low" pressure pattern?characterized by high pressure to the west and low pressure to the east?will intensify across Honshu. A strong cold air mass, comparable to what is typically seen in early December, is expected to move southward over Northern Japan. Consequently, Hokkaido and the northern part of the Tohoku region?particularly along the Sea of ??Japan coast?will experience snow or rain, accompanied by strengthening winds and rough weather. In Hokkaido, in particular, snowfall is expected to intensify, potentially leading to blizzard conditions. Please be cautious of poor visibility and deteriorating road conditions, and be sure to check the latest information regarding road and traffic conditions.
In the mountainous and inland areas of northern Tohoku, snowfall may also intensify locally, leading to an increase in snow accumulation.
In Northern Japan, strong winds are expected to persist through around the 8th, with coastal areas potentially experiencing severe sea conditions, including waves exceeding 6 meters. Please remain on high alert for violent winds and high waves through around the 8th.
Following this, as the cold air mass remains over Northern Japan, frequent snowfall is expected, particularly in Hokkaido.



Meanwhile, while many areas along the Pacific coast?from the Kanto region westward?are expected to see clear skies, northerly winds will make the air feel cold as a mass of cold air moves southward from the upper atmosphere. From tomorrow, the 7th, through the 8th, morning low temperatures will drop below 10C in many places, leading to a significant morning chill.

On Monday the 9th?the start of the new week?a low-pressure system will bring cold rain to many areas, stretching from the Tohoku region down to Kyushu. In some places, the rain may intensify and be accompanied by localized thunderstorms. Daytime highs, even in central Tokyo, are expected to be around 15C; early in the week, some areas may experience temperatures more typical of December. As we move into the latter half of next week, the cold is expected to gradually ease across a wide area, spanning from western to eastern Japan.
Please take care of your health, as significant day-to-day temperature fluctuations are likely.