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 | |
| Fukuoka | 16.97°C | 62.55°F | |
| Wakayama | 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 | |
| Gifu | 15.34°C | 59.61°F | |
| Hiroshima | 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
- Otsukadai Nishi Miyazaki
- Kera Otsu Kochi
- Funatsu Yamanashi
- Yubetsu-cho Hokkaido
- Kokubu Kiyomizu Kagoshima
- Ashikaricho Dome Saga
- Nagaoka-shi Niigata
- Kamo Tokushima
- Aokusamachi Ishikawa
- Koja Okinawa
- Otaru-shi Hokkaido
- Aita Hiroshima
- Okubocho Nishijima Hyogo
- Tajiri Wakayama
- Ishioka-shi Ibaraki
- Hirai Shizuoka
- Ajiro Nagasaki
- Aburatametou Fukui
- Imaizumi Shizuoka
- Shimoishiki Kagoshima
- Nishinosho Wakayama
- Antan Yamagata
- Aizumachi Ehime
- Hishimachi Gumma
- Tomakomai-shi Hokkaido
- Otsu-shi Shiga
- Ageicho Tottori
- Munakata-shi Fukuoka
- Yoko Oita
- Yahatahigashi-ku Fukuoka
- Hinode Ibaraki
- Anyojicho Shiga
- Amagatsuji Minamimachi Nara
- Sakedani Shimane
- Matsuo Miyazaki
- Togitsu-cho Nagasaki
- Kodatsuno Ishikawa
- Ichibucho Nara
- Futamicho Nishifutami Hyogo
- Kawasaki-machi Fukuoka
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