This year's Christmas will be "quite high"; there will be few areas with a white Christmas [Christmas 10-day forecast]

2025/12/16 12:34

It's finally almost a week until Christmas.

It has been predicted for some time that there will be a ``high temperature trend'' nationwide this Christmas, but will there be a white Christmas

We have also started to see some more detailed weather trends, so we would like to share them with you.



#Christmas will be warm with lots of rain instead of snow#

Looking at the forecast for cold and warm air from the 20th (Saturday), the
dark blue line is a guideline for cold air that will bring snow in the mountains.
From the weekend until Christmas next week, the dark blue line will move north, and
the warm air in the yellow area will more easily flow in.

For this reason, the weather is likely to be covered with warm air, and
there are few expected to be extremely cold days.

Especially around Christmas Eve, the 24th (Wednesday), warm air will flow towards the
low pressure system passing near Hokkaido.

Whatever falls in the Tohoku region is likely to turn into rain,
On the night of the 25th of Christmas,
winter-like atmospheric pressure patterns are expected to strengthen, and cold air is expected to flow in.

It seems that some ski resorts are scheduled to open before Christmas, but
there are few snowy days around Christmas, which is a troubling forecast for
ski resorts.

Even in flat areas, there are not as many snowy days in the lead up to Christmas as in previous years, and there will be few places that will have a "white Christmas" this year.

*White Christmas...The state where the ground is covered with snow on Christmas day




#At this time of year, there is a once-in-a-decade "high temperature trend"#

According to the
"Early weather information regarding high temperatures" released by the Japan Meteorological Agency on Monday, the 15th yesterday,
it is predicted that temperatures will be higher than normal from around December 21st across the country, excluding Okinawa, and that
there is a possibility of "considerably high temperatures."

At this time of year, it seems that some places will experience high temperatures that only occur once every 10 years.

You also need to be careful about managing your crops.



Finally, let's take a look at the latest 10-day forecast for major cities leading up to Christmas.

The weather will be covered by high pressure until the 19th (Friday), and it will be sunny in many places, but on the 20th (Saturday), the weather will be downhill from the west, and on the 21st (Sunday), a front will pass near Honshu, causing widespread rain.

There will be some lingering rain on the 22nd (Monday) at first, but
the weather will gradually improve.

From Christmas Eve 24th (Wednesday) to Christmas 25th (Thursday), the
low pressure system will develop and move towards northern Japan, so winds will be strong across the country.

On the 24th (Wednesday), it will start to rain from Hokkaido and Kyushu, and on the 25th (Thursday), it will rain nationwide, and it will likely snow in parts of Hokkaido.

Christmas temperatures are expected to be high, and even if it rains, it won't be freezing cold.

Temperatures are near normal in many places today, with unseasonably warm temperatures in the second half of the week

2025/12/16 06:42

Today, we will be covered in high pressure, so many places from eastern to western Japan will receive sunlight, and temperatures across the country will be typical of this time of year.

The predicted maximum temperature is Sapporo 3c, Sendai 9c, Tokyo 13c, Nagoya 12c, Kanazawa 12c, Osaka 13c, Kochi 15c, and Fukuoka 13c. In sunny areas, you can feel the warmth of the sunlight.



From now on, it will be easy to be covered by warm air from the south, and it is expected to be unseasonably warm nationwide.
Looking at the predicted maximum temperature, the temperature will gradually rise over the weekend in various places, and on the 20th (Saturday), Sapporo is expected to be 12 degrees Celsius, which is expected to be as warm as early November. What will fall is expected to fall as rain rather than snow in many places, and there is a risk that the snow will melt rapidly in areas with heavy snowfall. Please be careful of snow falling from the roof and deteriorating road conditions.

In many places from eastern Japan to western Japan, the temperature will be similar to November, so it will be unbelievably warm for December. The temperature will vary greatly throughout the day, so please be careful not to get sick.

Weather for today, the 16th (Tuesday): Rain in Tohoku and Hokuriku; sunny and calm from Kanto to the west

2025/12/16 06:21

Today, the 16th (Tuesday), the area around Japan is expected to be covered in high pressure, and the winter-like pressure pattern is expected to gradually loosen. The Pacific Ocean side receives sunshine, but the Sea of Japan side is cloudy and there will be some places where it will rain.



In Hokkaido, there are places with snow mainly on the Sea of Japan side, and strong winds will continue. Although there is no risk of the blizzard from yesterday, we still need to be careful about poor visibility due to the blizzard. It will be sunny and blue skies on the Pacific side.

The Sea of Japan side of Tohoku and the Hokuriku region are expected to experience rain from around noon, with localized thunderstorms expected. Be careful of lightning strikes and gusts of wind. When going out, please bring rain gear even if it is not raining.

On the other hand, it will be sunny from Kanto to the west, mainly on the Pacific side. The wind is weak, and it looks like it's going to be a calm and sunny day.
There are probably places on the Sea of Japan side of western Japan that receive sunlight during the day. However, there is a possibility of showers at night, so if you are returning late, it is a good idea to bring a foldable umbrella.

Sudden development of low pressure system Rapid increase in snowfall in Hokkaido Maximum instantaneous wind speed exceeds 40m/s Heavy blizzard and storm Warning of strong winds, blizzard, and high waves in northern Japan and Hokuriku tomorrow

2025/12/15 11:24

From the night of yesterday, the 14th (Sunday) to today, the 15th (Monday), a low pressure system accompanied by a front is rapidly developing near Hokkaido and moving north-northeast.
There are places around this low pressure system, mainly in northern Japan, where extremely strong winds are blowing and heavy snow is falling.



#Over 60cm of snowfall in just half a day in Hokkaido
As of 10am, the maximum daily snowfall in 12 hours was 67cm at Taiki in Taiki-cho, Hokkaido and Shirataki in Engaru-cho, Hokkaido, and 61cm at Kami-Satsunai in Nakasatsunai-mura, Hokkaido and Rubeshibe in Kitami-shi, Hokkaido, both of which updated the highest values for December until last winter.
The snowfall is rapidly increasing in just half a day, mainly in Hokkaido.

#Maximum instantaneous wind speed exceeds 40m/s in Hokkaido, ranking first in observation history
The maximum instantaneous wind speed of the day as of 10 a.m. was 40.5m/s at the upper marker in Nakashibetsu Town, Hokkaido, which is the highest in observation history.
There were places in Hokkaido where the maximum instantaneous wind speed exceeded 30m/s, at 35.6m/s in Nosappu and 33.7m/s in Nemuro, Hokkaido.
There are some places where there is a whiteout due to the blizzard.
There are also places where stormy winds are blowing and snowdrifts are forming.



#Warnings have been issued for northern Japan and Hokuriku
As of 10:45 a.m., there are places where storm warnings have been issued, storm warnings have been issued for northern Japan, blizzard warnings and heavy snow warnings have been issued for Hokkaido, wave warnings have been issued for northern Japan and Hokuriku, and storm surge warnings have been issued for the Nemuro region of Hokkaido.

#Northern Japan and Hokuriku: Warning of strong winds, blizzards, and high waves tomorrow.
The low pressure system is expected to move towards the waters near the Chishima Islands today, the 15th (Monday).
Due to the rapidly developing low pressure system, heavy rain is expected to occur in northern Japan and the Hokuriku region, mainly in the morning of today, the 15th (Monday). In northern Japan and Hokuriku, please be on guard against strong winds, blizzards and high waves until tomorrow the 16th (Tuesday).
In addition, in Hokkaido, today, the 15th (Monday), please be on guard against traffic disruptions due to heavy snow and be extremely cautious of high tides.



In northern and eastern Japan, extremely strong winds will blow today, the 15th (Monday), and there will be heavy snow in some places in northern Japan.
The maximum instantaneous wind speed expected today, the 15th (Monday), is 35 m/s in Hokkaido and Tohoku, and 30 m/s in Hokuriku.
In northern Japan and Hokuriku, there will be heavy waves in some places until tomorrow the 16th (Tuesday).
The expected wave height for today, the 15th (Monday) is 7m in Hokkaido and 6m in Tohoku and Hokuriku.
The expected wave height for tomorrow, the 16th (Tuesday), is 6m in Hokkaido.



The peak of the heavy snow will gradually pass over the mountain pass.
In eastern Hokkaido, new snowfall is expected starting today, the morning of the 15th (Monday).
Please be careful of the sudden increase in snowfall in a short period of time.

In northern Japan and Hokuriku, be careful of strong winds, blizzards, and high waves.
In Hokkaido, be careful of traffic disruptions caused by heavy snow, and be careful of avalanches and snow accumulation.
Also, in Hokkaido, be extremely careful of storm surges.

Northern Japan to Hokuriku will experience rough weather tomorrow, the 15th (Monday). Be careful and be alert to heavy snow, strong winds, blizzards, and high waves.

2025/12/14 18:06

There is a rapidly developing low pressure system off the coast of Akita and Sanriku, and it is moving northeast.
Currently, there are places where it is raining and snowing in northern and eastern Japan and on the Sea of Japan side of western Japan, and in northern Japan and the Hokuriku region, there are areas where warnings for strong winds, heavy snow, heavy snow, storm surge, and waves have been issued.



The two low pressure systems will continue to develop rapidly as they move toward the Tohoku region, and tomorrow they are expected to move toward the waters near the Chishima Islands, creating a winter-like pressure pattern.




Due to the effects of these rapidly developing low pressure systems and winter-like pressure patterns, there will be severe storms in northern Japan and the Hokuriku region tomorrow, the 15th (Monday).

Northern Japan and the Hokuriku region should be on alert for strong winds, heavy snowfall, and high waves until the 15th.
Also, in the Hokkaido region, please be on guard for traffic disruptions due to heavy snow and be extremely cautious of high tides until the 15th.



###Wind Forecast
In northern and eastern Japan, extremely strong winds will blow into the 15th, and in some places in northern Japan it will be blizzard with snow.
Maximum wind speed (maximum instantaneous wind speed) expected from the 14th to the 15th
Hokkaido region 28 meters (40 meters).
Tohoku region 25 meters (35 meters).
Hokuriku region 25 meters (35 meters).

###Wave Forecast
There will be heavy waves in northern Japan and the Hokuriku region until the 15th.
Wave height expected from the 14th to the 15th
Hokkaido region 7 meters.
Tohoku region 6 meters.
Hokuriku region 6 meters With swells.

###Snow forecast
There will be warning-level heavy snowfall in some places in the Hokkaido region through the 15th.
The expected 24-hour snowfall from 18:00 on the 14th to 18:00 on the 15th is expected to be 80 cm in the Hokkaido region.

###Disaster prevention matters
In northern Japan and the Hokuriku region, please be careful of strong winds, heavy snowfall, and high waves.
In the Kaido region, be wary of traffic disruptions caused by heavy snow, and be careful of avalanches and snow accumulation.
Also, please be extremely careful about storm surges in the Hokkaido region.

Weather for the week: Stormy weather in northern Japan and Hokuriku until the 15th, with the cold gradually easing into the second half of the week

2025/12/14 08:44

The rough weather will continue from northern Japan to Hokuriku until tomorrow, the 15th (Monday). After that, rain and snow will likely continue from the Sea of Japan side of northern Japan to the Hokuriku region, but the cold will gradually ease and temperatures will tend to be high for this time of year.



Tomorrow, the 15th (Monday), a low pressure system accompanied by a front will advance near the Chishima Islands. From northern Japan to Hokuriku, the isobars are closely spaced, and very strong winds will blow from the north. The sea is expected to be in trouble. From northern Japan to Hokuriku, please be on guard for traffic disruptions due to strong winds and high waves, and heavy snow and blizzard in Hokkaido through tomorrow the 15th, and be careful of power outages and avalanches due to snow accumulation.



After that, the Sea of Japan side from northern Japan to Hokuriku will likely experience continued rain and snow days due to fronts and pressure troughs. Around the 17th (Wednesday), as a low pressure system passes near Honshu, the weather will temporarily deteriorate in western Japan, causing rain to fall in many places. The Pacific side of eastern Japan will continue to have sunny days from tomorrow, the 15th (Monday), and the air will be dry. Please be careful when handling sources of fire.

From now on, cold air is expected to move northward, and temperatures are expected to be higher than normal across the country. On the next Saturday and Sunday, temperatures in many places are expected to be similar to mid- to late-November temperatures, and the trend is expected to continue with higher-than-normal temperatures until around the 25th. This year's Christmas may feel warmer than usual.

From the 14th to the 15th, there will be severe stormy weather from northern Japan to Hokuriku. Beware of heavy snow, blizzard, high waves, etc.

2025/12/13 21:37

Tomorrow, the 14th (Sunday), two low pressure systems will develop and advance near the Sea of Japan and the southern coast of Honshu. The low pressure system moving through the Sea of Japan is expected to gradually become unclear from the night of the 14th to the early morning of the 15th, but the low pressure system with a front moving along the southern coast of Honshu is expected to continue to develop rapidly and reach the Pacific side of Hokkaido.
Due to the influence of these low pressure systems, areas from northern Japan to Hokuriku will experience heavy rain from tomorrow the 14th to the 15th. On the Sea of Japan side of western Japan, there are expected to be strong rain and winds accompanied by thunder on the 14th.



The rain in western Japan is expected to stop in many places from morning to noon, but it will rain widely from eastern to northern Japan. Rain in the Tokai and Kanto regions is expected to peak in the morning, but in Hokuriku there will be intermittent rain, and along the coast there is a risk of extremely strong winds and heavy swells.

In the Tohoku region, there will be snow and rain from the morning of tomorrow, the 14th, and there will be some places inland and along the mountains where the snow will be heavier. Extremely strong winds are expected to cause severe damage along the coast of the Sea of Japan into tomorrow night. Particularly in areas where large earthquakes have occurred, the ground may be loose due to previous rains and earthquakes, so be careful and be on guard against landslides.



Hokkaido will experience full-scale snow from the afternoon of tomorrow, the 14th. The winds will be strong and there is a risk of a blizzard. In particular, looking at the snow forecast at 9 p.m., there is a risk that heavy snowfall will spread across the Pacific side of Hokkaido, and the snowfall will increase rapidly. Please be on alert for heavy snow, blizzard, and high waves. Due to the heavy, wet snow, please be careful of power outages due to snow accreting on power lines.



#Wind forecast
Maximum wind speed (maximum instantaneous wind speed) expected from the 14th to the 15th
Hokkaido region 28 meters (40 meters)
Tohoku region 25 meters Tour (35 meters)
Hokuriku region 25 meters (35 meters)
Northern Kyushu region 20 meters (30 meters)

#Wave forecast
14th to 15th Expected wave height
Hokkaido region 7 meters
Tohoku region 6 meters
Hokuriku region 6 meters with swells

#Snow forecast
Reservation by 18:00 on the 14th The predicted 24-hour snowfall amount is expected to be high in places,
Hokkaido region 30 cm

Then, the expected 24-hour snowfall amount from 18:00 on the 14th to 18:00 on the 15th is expected to be high,
Hokkaido region 70 cm

"Winter storm" followed by "high temperatures once in 10 years" Will this be a warm Christmas [Weekly weather]

2025/12/13 12:24

From tomorrow the 14th (Sunday) to the 15th (Monday),
two low pressure systems are expected to rapidly develop and move toward northern Japan, causing strong winds and heavy snow in
northern Japan and the Hokuriku region.

However, the winter storm has taken a turn and there will be many days covered in high pressure next week, and from around the 18th (Thursday), almost all of Japan is expected to experience
``high temperatures of once-in-a-decade degrees.''

What will the weather be like this Christmas



This is the forecast weather map for today's 13th (Sat) night and tomorrow 14th (Sun) night.

There are two low pressure systems sandwiching Honshu.

The central pressure of the low pressure near the Tsushima Strait is expected to be 1012hPa tonight, but by tomorrow night, it is expected to move toward the coast of Akita and have a pressure of 988hPa.

Also, the low pressure system accompanying the front moving south of Kyushu (the low pressure circled in red) is expected to reach 1012 hPa tonight, but tomorrow night it is expected to advance to near Hokkaido and reach 984 hPa.

In just 24 hours, the two low pressure systems are both expected to decrease in pressure by 24hPa and 26hPa, and develop rapidly.

Due to the rapidly developing low pressure system, northern Japan and the Hokuriku region will experience heavy winds and heavy snow, and there will be strong winds and snow, resulting in blizzards in some places.
Also, areas on the Pacific side of Hokkaido will receive more snow than the Sea of Japan side, and it is likely that some places will experience record heavy snowfall.



Snow, rain, and wind forecast at 9 a.m. tomorrow, the 14th (Sunday).
Rain clouds and snow clouds will fall from the Tokai region to the Tohoku region, and
There are likely to be places where the snow will be heavier, especially in the Tohoku region.

After that, the weather will gradually improve from Kyushu to Kanto during the day.




Rain and snow will continue to fall in northern Japan and the Hokuriku region on the night of the 14th (Sunday), and
there is a risk that the rainfall will become stronger with thunder.

Also, there will be some places where the wind will be extremely strong and blustery.
Please be careful of poor visibility due to blizzard.




After that, snow and rain will continue in northern Japan and Hokuriku until the 15th (Monday).
Please be careful of avalanches and snow accretion on power lines and trees.

It would be a good idea to prepare for power outages and water outages.

Tuesday 16th
The area around Honshu is covered by high pressure, and it is expected to be sunny over a wide area.
The strong winds in northern Japan will gradually subside.

17th (Wednesday)
Due to the influence of a low-pressure system accompanied by a front, rain and snow will fall mainly on the Sea of Japan side,
There will also be periods of rain on the Pacific side of western Japan.

18th (Thursday) - 20th (Saturday)
It will be covered by high pressure, and especially on Friday the 19th,
it is expected to be sunny across a wide area, including the Sea of Japan side of northern Japan.
The air is likely to become drier on the Pacific side.



If you look at the temperature in the weekly weather,
next week there will be many days where the temperature is higher than normal,
especially from around the 18th (Thursday), it is expected to be ``significantly higher'' than normal.

Therefore, the Japan Meteorological Agency recently announced
``Early Weather Information Regarding High Temperatures'' to a wide area of Japan.



From around the 18th (Thursday), Hokkaido, Tohoku, Kanto-Koshin, Hokuriku, Tokai,
Kinki, Chugoku, Shikoku, northern Kyushu, and southern Kyushu regions may experience ``remarkably high temperatures'' that only occur once every 10 years at this time of year.

Until around the 23rd (Tuesday), temperatures were much higher than normal, and from
24th (Wednesday) to 25th (Thursday) cold air flowed in from the north,
with a tendency for the temperature to drop each day.
Compared to previous years, this year's Christmas may feel warmer.

However, it gets cold at night, so if you are going to see illuminations or Christmas night, please wear warm clothes.

A low pressure system is rapidly developing, and tomorrow will be rough in northern Japan and Hokuriku. Beware of blizzards.

2025/12/13 07:50

Today, the 13th, a low pressure system is expected to develop and advance over the Sea of Japan and the Nansei Islands. There will be periods of sunshine in the morning, but rain will spread throughout eastern and western Japan into the evening. If you will be returning late, please prepare rain gear.

Then, from tomorrow the 14th (Sunday) to the 15th (Monday), a low pressure system will rapidly develop along the Pacific coast of Honshu and move toward Hokkaido, while a low pressure system moving along the Sea of Japan will also rapidly develop and move from the central Japan Sea to the Tohoku region. Due to the effects of these low pressure systems, northern Japan and the Hokuriku region are expected to experience heavy rain from tomorrow the 14th (Sunday) to the 15th (Monday).

In northern Japan and the Hokuriku region, be careful of strong winds, snowstorms, and high waves.In northern Japan, be careful of traffic disruptions due to heavy snow, high tides, and be careful of avalanches and snow accumulation.




[Wind Forecast]
In northern Japan and the Hokuriku region, extremely strong winds will blow tomorrow the 14th (Sunday), and in northern Japan from the 14th (Sunday) tomorrow to the 15th (Monday) the following day, extremely strong winds will blow accompanied by snow, resulting in heavy blizzards in some places.
#Expected wind strength
+Maximum wind speed (maximum instantaneous wind speed) expected from tomorrow the 14th (Sunday) to the 15th (Monday) the day after tomorrow
Hokkaido region 25m/s 25m/s (35m/s)
Tohoku region 2 5m/s (35m/s)
Hokuriku Region 25m/s (35m/s)

[Wave Forecast]
In northern Japan and the Hokuriku region, there will be heavy waves from tomorrow the 14th (Sunday) to the 15th (Monday).
#Expected wave height
+Expected wave height from tomorrow 14th (Sunday) to the following day 15th (Monday)
Hokkaido region 6m
Tohoku area Direction: 6m
Hokuriku region: 6m

[Snow forecast]
In northern Japan, there will be heavy snow in some places from tomorrow the 14th (Sunday) to the 15th (Monday).
#Forecasted amount of snow (in areas with the most)
+24-hour snowfall expected by dawn on the 15th (Monday) the next day
Hokkaido region 70cm
+24-hour snowfall expected by dawn on the 16th (Tuesday)
Hokkaido region 40cm

Weather for today, the 13th (Saturday): The winter-like atmospheric pressure pattern is gradually dissolving; the weather is going downhill from the west.

2025/12/13 06:25

Today, the 13th (Saturday), we will be covered by high pressure and the winter-like pressure pattern will gradually disappear. On the other hand, the weather is expected to go downhill in western and eastern Japan due to the influence of a low pressure system approaching from the west.



It will snow in Hokkaido until around noon. Please be careful as there are strong winds and blizzards.
Clouds tend to spread in the Tohoku region, and there are likely to be some places where snow will remain until the morning. It is expected to gradually stop in many places in the afternoon.

From eastern to western Japan, there will be many places where the sun will reach in the morning, especially on the Pacific side. However, the weather is expected to turn downhill from the west in the afternoon. It will start raining in Kyushu in the evening, and in the evening it will start raining in Chugoku, Shikoku, Kinki, and Tokai. In the Kanto region, it is more likely to rain late at night, and the further inland it is, the more likely it will be sleet. Don't forget to bring rain gear when you go out.

It's cold all over the country, and it looks like it's going to be as cold as mid-winter. The temperature in central Tokyo is expected to be 9 degrees Celsius, the coldest of the season. When going out, please take all possible measures to protect yourself from the cold.