Japan Climate
Climate Zone and Historical Climate Data
Japan Climatic Classifications
| Code | Description | Group | Number of states/regions | States/regions |
|---|---|---|---|---|
| Cfa | Humid subtropical, no dry season | Temperate | 38 | Aichi Akita Aomori Chiba Ehime Fukui Fukuoka Gifu Hiroshima Hyogo Ibaraki Kagawa Kagoshima Kanagawa Kochi Kumamoto Kyoto Mie Miyagi Miyazaki Nagasaki Nara Niigata Oita Okayama Okinawa Osaka Saga Saitama Shiga Shimane Tochigi Tokushima Tokyo Tottori Toyama Wakayama Yamaguchi |
| Dfb | Humid continental, no dry season, warm summer | Cold (continental) | 8 | Fukushima Gumma Hokkaido Ishikawa Iwate Nagano Shizuoka Yamanashi |
| Dfa | Humid continental, no dry season, hot summer | Cold (continental) | 1 | Yamagata |
Summary: Most regions (38) in Japan lie in the Humid subtropical, no dry season climate zone (Köppen: Cfa). The mean average of annual temperatures range from a high of 23.6°C (74.48°F) in Okinawa to a low of 7.45°C (45.41°F) in Hokkaido.
Climate Japan: Weather By Month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Nov | Oct | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °C (°F) | 18.8(65.84) | 19.18(66.52) | 20.25(68.45) | 22.07(71.73) | 24.72(76.5) | 27.37(81.27) | 30.36(86.65) | 32.18(89.92) | 28.48(83.26) | 26.31(79.36) | 23.65(74.57) | 20.52(68.94) | 32.18(89.92) |
| Average high °C (°F) | 6.19(43.14) | 7.14(44.85) | 10.84(51.51) | 15.7(60.26) | 21.17(70.11) | 23.97(75.15) | 27.74(81.93) | 29.51(85.12) | 25.59(78.06) | 20.11(68.2) | 14.56(58.21) | 8.63(47.53) | 17.6(63.68) |
| Daily mean °C (°F) | 4.0(39.2) | 4.75(40.55) | 8.23(46.81) | 13.02(55.44) | 18.5(65.3) | 21.71(71.08) | 25.57(78.03) | 27.05(80.69) | 23.08(73.54) | 17.6(63.68) | 12.22(54.0) | 6.54(43.77) | 15.19(59.34) |
| Average low °C (°F) | 0.65(33.17) | 0.97(33.75) | 3.85(38.93) | 8.12(46.62) | 13.02(55.44) | 16.96(62.53) | 21.29(70.32) | 22.68(72.82) | 19.19(66.54) | 13.74(56.73) | 8.6(47.48) | 3.32(37.98) | 11.03(51.85) |
| Record low °C (°F) | -12.68(9.18) | -12.81(8.94) | -7.5(18.5) | -0.31(31.44) | 5.85(42.53) | 9.35(48.83) | 14.01(57.22) | 14.98(58.96) | 11.37(52.47) | 4.49(40.08) | -1.21(29.82) | -8.25(17.15) | -12.81(8.94) |
| Average precipitation mm (inches) | 48.65(1.92) | 48.08(1.89) | 66.57(2.62) | 75.27(2.96) | 77.95(3.07) | 125.75(4.95) | 159.03(6.26) | 101.46(3.99) | 113.03(4.45) | 92.91(3.66) | 47.63(1.88) | 57.31(2.26) | 84.47(3.33) |
| Average precipitation days (≥ 1.0 mm) | 8.8 | 8.51 | 9.77 | 9.68 | 9.13 | 13.29 | 15.9 | 13.62 | 12.32 | 8.75 | 7.77 | 9.61 | 10.6 |
| Average relative humidity (%) | 74.15 | 74.32 | 72.71 | 72.5 | 73.32 | 80.58 | 82.68 | 79.15 | 78.95 | 76.36 | 74.33 | 74.03 | 76.09 |
| Mean monthly sunshine hours | 6.71 | 7.1 | 9.41 | 11.81 | 12.7 | 12.67 | 12.66 | 12.57 | 10.76 | 8.57 | 7.31 | 6.76 | 9.92 |
Japan Climate Graph
Japan’s Cities by Temperature
Japan’s states/regions ranking by average yearly temperature:
| Okinawa |
|
23.6°C | 74.48°F |
| Miyazaki |
|
18.93°C | 66.07°F |
| Kagoshima |
|
18.29°C | 64.92°F |
| Nagasaki |
|
17.96°C | 64.33°F |
| Saga |
|
17.45°C | 63.41°F |
| Tokyo |
|
17.28°C | 63.1°F |
| Saitama |
|
17.22°C | 63.0°F |
| Chiba |
|
17.14°C | 62.85°F |
| Kochi |
|
16.99°C | 62.58°F |
| Wakayama |
|
16.97°C | 62.55°F |
| Fukuoka |
|
16.97°C | 62.55°F |
| Kumamoto |
|
16.81°C | 62.26°F |
| Tokushima |
|
16.79°C | 62.22°F |
| Osaka |
|
16.78°C | 62.2°F |
| Ibaraki |
|
16.72°C | 62.1°F |
| Oita |
|
16.67°C | 62.01°F |
| Okayama |
|
16.6°C | 61.88°F |
| Kagawa |
|
16.35°C | 61.43°F |
| Yamaguchi |
|
16.33°C | 61.39°F |
| Aichi |
|
16.31°C | 61.36°F |
| Ehime |
|
16.29°C | 61.32°F |
| Shizuoka |
|
16.25°C | 61.25°F |
| Mie |
|
15.91°C | 60.64°F |
| Hyogo |
|
15.72°C | 60.3°F |
| Kanagawa |
|
15.67°C | 60.21°F |
| Nara |
|
15.51°C | 59.92°F |
| Hiroshima |
|
15.34°C | 59.61°F |
| Gifu |
|
15.34°C | 59.61°F |
| Kyoto |
|
15.3°C | 59.54°F |
| Shimane |
|
15.09°C | 59.16°F |
| Ishikawa |
|
14.84°C | 58.71°F |
| Tottori |
|
14.64°C | 58.35°F |
| Shiga |
|
14.45°C | 58.01°F |
| Fukui |
|
14.43°C | 57.97°F |
| Niigata |
|
14.15°C | 57.47°F |
| Gumma |
|
13.22°C | 55.8°F |
| Toyama |
|
12.79°C | 55.02°F |
| Miyagi |
|
12.68°C | 54.82°F |
| Akita |
|
12.27°C | 54.09°F |
| Tochigi |
|
12.22°C | 54.0°F |
| Fukushima |
|
12.02°C | 53.64°F |
| Yamanashi |
|
11.94°C | 53.49°F |
| Yamagata |
|
11.14°C | 52.05°F |
| Nagano |
|
11.13°C | 52.03°F |
| Aomori |
|
10.56°C | 51.01°F |
| Iwate |
|
9.31°C | 48.76°F |
| Hokkaido |
|
7.45°C | 45.41°F |
States/Regions
- Aichi
- Akita
- Aomori
- Chiba
- Ehime
- Fukui
- Fukuoka
- Fukushima
- Gifu
- Gumma
- Hiroshima
- Hokkaido
- Hyogo
- Ibaraki
- Ishikawa
- Iwate
- Kagawa
- Kagoshima
- Kanagawa
- Kochi
- Kumamoto
- Kyoto
- Mie
- Miyagi
- Miyazaki
- Nagano
- Nagasaki
- Nara
- Niigata
- Oita
- Okayama
- Okinawa
- Osaka
- Saga
- Saitama
- Shiga
- Shimane
- Shizuoka
- Tochigi
- Tokushima
- Tokyo
- Tottori
- Toyama
- Wakayama
- Yamagata
- Yamaguchi
- Yamanashi
Popular places in Japan
- Goto-shi Nagasaki
- Arashimachi Ishikawa
- Shocho Mie
- Minamishimabara-shi Nagasaki
- Sakae-ku Kanagawa
- Sakuragawa-shi Ibaraki
- Chinzeimachi Shobu Saga
- Yokkaichi-shi Mie
- Moriyama-shi Shiga
- Ajimumachi Kamiichi Oita
- Togitsu-cho Nagasaki
- Tsumagicho Gifu
- Masunaga Kumamoto
- Higashikiwa Yamaguchi
- Ofuku Okayama
- Ejiri Tokushima
- Akimaru Kochi
- Shimoichi-cho Nara
- Ayautacho Okadashimo Kagawa
- Shimommyo Kagoshima
- Ajimumachi Bogahata Oita
- Hidaka-mura Kochi
- Sukagawa-shi Fukushima
- Kori-machi Fukushima
- Chinzeimachi Hayata Saga
- Aigawamachi Nagasaki
- Mima-shi Tokushima
- Miyoshi-shi Hiroshima
- Awa Kochi
- Asahi Nara
- Chuohommachi Saga
- Taira Shimokabeya Fukushima
- Tomi-shi Nagano
- Ooaza Iya-machi Shimane
- Hajikacho Tochigi
- Ino Oita
- Kaga-shi Ishikawa
- Arayakashiwanomachi Ishikawa
- Hikishonishimachi Osaka
- Hayashidacho Kagawa
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