Home>>Ignorant of the weather of Japan

North Hokkaido

　The cold of winter of the Sea of Japan side area along the shore is loose because of oceanic climate, and especially a southern part is warm.However, there are many days of snowstorm because of a heavy snowfall area.Moreover, since daylight hours are as short as about 2 hours per day, temperature seldom goes up also by daytime. Inland, although it is very cold in winter, a tropical day is observed in many cases and the difference of temperature is large in summer.It becomes cool the morning and evening and has become the climate which is easy to pass.

East Hokkaido

　It is an area which a foehn(The phenomenon which moist air serves as a dry warm wind, and blows down across a mountain ) happens from spring easily in summer, may record an intensely hot day inland, and serves as high temperature most in Hokkaido.A tropical day may be observed even in May or June. However, heat does not last long but may dive to temperature to the extent that rain and sleet fall coldly at the time when the Sea of Okhotsk high pressure stagnates.That heat will recur again from July after that in August etc. is an area where a temperature difference is very large.

Doo (Sea of Japan side)

　In the Sea of Japan side, although especially winter is warm in an area along the shore, there are much snowfall and snowfall and they serve as a heavy snowfall area. It may become drifting snow under the influence of a monsoon. Moreover, if a bomb cyclone hits directly, a heavy snowfall of 1 m or more may fall in a night.

Doo (Pacific Ocean side )

　It is cool climate in the summer of the Pacific Ocean, and it is very rare for temperature to exceed 30 ℃. By the area, a difference in temperature is intense and there are a warm area and a chill area in winter. There are many daylight hours, and since they get comparatively warm in the daytime, they serve as quiet climate.

South Hokkaido

　Although the whole region belongs to the Sea of Japan side climate mostly, in - winter, in Hokkaido, average temperature becomes high most under the influence of the Tsushima warm current in summer. Since with few daylight hours the monsoon is strong, even if there is much snowfall, snow does not lie easily due to the influence of a wind and temperature in winter.Moreover, it becomes sultry in summer and a sultry night may be observed uniquely in Hokkaido.

■A typhoon and a rainy season do not come to Hokkaido?

　In fact, a typhoon and a rainy season come. However, a typhoon weakens influence, before landing at Hokkaido, and a typhoon can seldom be declared that it came. Although the phenomenon in which a rainy season is called the "Ezo rainy season" and in which it is raining about two weeks occurs, the Meteorological Agency does not accept this to be a rainy season officially. Therefore, Hokkaido is said for a typhoon and a rainy season not to come.

The Sea of Japan coast, the foot of Nasu volcanic zone, and the west side (basin)

　Although there may be much fine weather and may become high temperature in the area belonging to the Sea of Japan climate in summer, temperature falls night and it becomes easy to pass. There are few daylight hours and most serves as a heavy snowfall area in winter.

The east side except the foot of Pacific Ocean side Nasu volcanic zone (basin)

　It is both with a low-temperature day by the day which serves as high temperature in the area having the Pacific Ocean side climate and a continental climate in summer, and a clouded sky. While there is a day when snow falls under the influence of a cold air mass etc. also in winter, it may become fine weather like a Pacific coast area.

Pacific coast

　Temperature does not almost go up in summer for a clouded sky, but it is influence of Yamase and there is also a year which serves as a cool summer of bad weather at low temperature in the area having the Pacific Ocean side climate and oceanic climate. On the other hand, the weather of winter has fine much and air is drying it. There is also comparatively little snowfall.

■Northeast=Much snow falls?

　The Tohoku district is roughly divided into four, the east side except the Sea of Japan coast, the foot of Nasu volcanic zone, and the west side and the foot of Nasu volcanic zone, and the Pacific coast, and there is climate which is different in each.

Kanto (the Pacific Ocean side climate)

　It is rainy in summer and is an area to dry in winter. inside there is much generating of the thunder by a shower in northern Gumma and Tochigi and Saitama it comes to bite and is also called the Ginza moreover, it stops in winter making compared with the west of the Tokai district, temperature may be much less, and, occasionally temperature may become low from Hokkaido.

Kanto (the Sea of Japan side climate)

　In a part of northern Gumma, much snow falls like Hokuriku in this in winter. Katashina-mura, Gumma serves as a Kanto district only special snowfall zone especially. Even if temperature goes up in summer, it is rare about 30 ℃ and to observe a summer day.

Kanto (Nam Il earnest season)

　Only Ogawawara Islands in Tokyo are located in the way of south, and, unlike the area in other Kanto district, serve as a Nam Il earnest season. Therefore, the period of summer is long warmly in winter.

■The heavy snowfall area included in 5 fingers of Japan

　Hokuriku District is a heavy snowfall area to the extent that it goes into 5 fingers of Japan, and is the most famous district as a snowy country. Since it is called a snowy country, there are very many skiing areas. In an area along the shore and inland, snowfall has a big difference.

■Many thunders and intense heat happen?

　It is known as an area with much thunder by a shower to Tochigi Prefecture, Gumma Prefecture, and northern Saitama. Moreover, in the Kanto inland of summer, it is not new to record intense intense heat.

Central part (Tokai)

　The Tokai district is divided into three climates and the coast in Aichi Prefecture and Shizuoka Prefecture is the Pacific Ocean side climate from Mie Prefecture. Iga in Mie Prefecture and the great portion of Gifu Prefecture are continental climates. The Gifu west warm Hida district serves as the Sea of Japan side climate. It is sultry in Nobi Plain at heat and high humidity in summer, and Tajimi-shi, Gifu has taken out the observation highest ever temperature of Japan. However, the cold dry wind "Ibuki taking down" blows from Ibuki-yama, and the effective temperature falls at a stretch to the north Japan average in winter.

Central part (Hokuriku)

　Whole Hokuriku District is the Sea of Japan climate, and is famous as a snowy country. Especially the circumference in Niigata Uonuma and Joetsu is a heavy snowfall area to the extent that it goes into 5 fingers in Japan. However, it is said that it may be said that there is no snow coverage only by how for snow to fall having changed with areas, for example, being 5 km away from the point which is the snow coverage of 30 cm. Compared with winter, rain days become fewer in summer, and it becomes comparatively high temperature . The numerical value of the about as the Pacific Ocean side in the same latitude also with average temperature same at 26 ℃ ? about 28 ℃ is observed.

Kinki (the Pacific Ocean side climate)

　The south of Kii Mountains hits this. Especially this area had many attacks of a typhoon, and, these days, brought about damage with the typhoon No. 12 serious to Kii Peninsula in Heisei 23.

Kinki (the Sea of Japan side climate)

　The Tanba high ground and the north of Chugoku Mountains hit this. In the area where a heavy snowfall area spreads, a very cold day continues also in Kinki district in winter. On the other hand, it seldom rains in summer but it becomes comparatively high temperature .

Kinki (Setonaikai style climate)

　The area across which it faces between the Tamba high ground and the north of Chugoku Mountains, and the south of Kii Mountains hits this. The weather and humidity are stable through every year, and it will seldom rain in July and August. Snow and rain seldom fall in winter.

■A severe area

　It is very sultry in Nobi Plain at high temperature in summer. A cold dry wind called Ibuki taking down blows on others in winter. A typhoon often passes through southern Mie in a rainy area.

■A district with little rain and snow

　The heavy snowfall area spreads out centering on northern Kinki, and it is roughly as climate divided into three. In the Tamba high ground and Chugoku Mountains, there are much clouded sky and snowfall in winter, and there is much fine weather in summer. Since Kii Mountains are dried in winter, snow has much fine weather few, and many fine weather of a rainy season, the rain by a typhoon, and midsummer is seen in summer. Since an area in the meantime is the climate most dried by the foehn in Japan in summer, it is an area with little rain.

Shikoku (Setonaikai side)

　Although a "calm" peculiar to Setonaikai is seen or there is a day when a light rain and sleet fall also in winter in summer, there are many days of fine weather. It lets one year pass and there is little precipitation also in summer and winter.

Shikoku (Pacific Ocean side)

　If summer comes, weather phenomena, such as a typhoon and local severe rain, will be seen, and there is very much precipitation through every year in winter under the influence of a monsoon, many days of cloudy weather, rain, and snow being.

Chugoku (San-in)

　There are many days of fine weather in summer, and if winter comes, there are very many days of snow or rain. In some areas, it is also a heavy snowfall area.

Chugoku (San-yo)

　There is little precipitation also in summer and winter and there are very many fine weather days and amounts of insolation.

Kyushu (northern part)

　It is the climate where it is warm and there is much precipitation in summer, it is cold and there is little precipitation in winter. However, at the summit of the mountain or the high ground in Kyushu, if summer comes low, a tropical day will continue, and if temperature becomes winter, its snow coverage may increase.

Kyushu (southern part)

　It is said that the number of landing of a typhoon is No.1 of Japan, and there is very much precipitation from summer in autumn . Since the climate of winter is warm, it also seldom snows but there are very many days of fine weather.

Kyushu (western part)

　If summer comes, it is easy to be subject to the influence of the tropical monsoon air mass from South China and southwest islands, and there is very much precipitation of the rainy season. Although there is much precipitation also in winter, there is little snow coverage compared with the San-in district.

Kyushu (eastern part)

　If it lets one year pass, there is little precipitation. Since there is little precipitation and there is little snow also in winter when the rainy season with much precipitation is removed in summer, there are very many days of fine weather.

Okinawa

　If it is a place hot No. 1 in Japan as since it is a way of south, it is likely to mistake, but the intensely hot day over 35 ℃ does not almost have the maximum temperature, and average yearly temperature is about 22 ℃. When summer comes under the influence by the typhoon or a rainy season, there is much precipitation, and since it does not snow at all in winter, there are very many days of fine weather.

■Does it snow to Okinawa?

　In the Okinawa district, snow sleet is observed for the first time in 1977. However, the day It is not snowfall record with a meteorological observatory negative since it was high-temperature, and the official present.