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Climate
- wide range of yearly temperatures
- large amount of rainfall
- large regional differences throughout the seasons
Spring
- March: temperature rises with each rainfall
- strong winds from the south (haru ichiban, 'first tidings
of spring')
- nice and comfortable
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Sapporo: 0~12°C/32~54°F
Tokyo: 8~19°C/46~66°F |
Osaka: 8~19°C/46~66°F
Okinawa: 18~24°C/64~75°F |
Summer
- June: rainy season (baiu or tsuyu)
- peak of summer in late July, lingers on through end of August
- hot and humid, generally uncomfortable
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Sapporo: 16~22°C/61~72°F
Tokyo: 21~27°C/70~81°F |
Osaka: 23~28°C/73~82°F
Okinawa: 26~33°C/79~91°F |
Autumn
- September: typhoon season
- weather resembles rainy season, weather clears mid-october
- generally nice and comfortable
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Sapporo: 4~17°C/39~63°F
Tokyo: 12~23°C/54~73°F |
Osaka: 13~24°C/55~75°F
Okinawa: 21~27°C/70~81°F |
Winter
- December: snow in the mountains and on Japan Sea
side
- dry wind on Pacific Ocean side
- peak of winter in late January
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Sapporo: -5~-1°C/23~30°F
Tokyo: 5~8°C/41~46°F |
Osaka: 5~8°C/41~46°F
Okinawa: 16~18°C/61~64°F |
NOTE: Temperatures shown are mean temperatures.
A low of 5° could for example mean a range between 0°
and 10°.
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