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 | |
| 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
- Izumi Fukushima
- Shijonawate-shi Osaka
- Minato Okayama
- Takahama-shi Aichi
- Higashisakamoto Kagoshima
- Komagome Aomori
- Asadachi Yamagata
- Sakawa-cho Kochi
- Nara-shi Nara
- Sannohe-machi Aomori
- Kadono Kyoto
- Aikawa Kamiyamachi Niigata
- Shiraoka-shi Saitama
- Tsurugaoka Ishikawa
- Befu Fukuoka
- Kunohe-mura Iwate
- Kurokamicho Nagasaki
- Hikone-shi Shiga
- Misato Okinawa
- Akitsunemachi Ishikawa
- Sanyo Okayama
- Tadakaricho Gumma
- Fudono Tokushima
- Amidadocho Shiga
- Kujicho Ibaraki
- Dota Gifu
- Kiyama-cho Saga
- Fuji-shi Shizuoka
- Aonocho Nara
- Agami Nagasaki
- Iikura Fukuoka
- Iruma-shi Saitama
- Hiroshima-shi Hiroshima
- Niisatocho Nikkawa Gumma
- Ibaraki-shi Osaka
- Nagareyama-shi Chiba
- Sasaya Fukushima
- Hiragishi 1-Jo Hokkaido
- Aramachi Yamagata
- Akebonocho Kochi
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