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
- Maidashi Fukuoka
- Amauchi Kyoto
- Araki Toyama
- Asahidai Yamagata
- Akasaka Minamishimmachi Okayama
- Fukuoka-shi Fukuoka
- Makubetsu-cho Hokkaido
- Ikata-cho Ehime
- Oyama Kumamoto
- Tomiokacho Hokkaido
- Shimotajima (Higashi) Miyazaki
- Asakurayokomachi Kochi
- Kitasuna Tokyo
- Yoshinomachi Gifu
- Sakaide-shi Kagawa
- Aoyacho Aoya Tottori
- Ainokimachi Ishikawa
- Onoharacho Kagoshima
- Ichige Ibaraki
- Besshiyo Wakayama
- Bannosumidoricho Kagawa
- Tsushima-shi Aichi
- Sumiyoshi Yamanashi
- Yoyasucho Gifu
- Hashimoto-shi Wakayama
- Ariura Akita
- Nobacho Kanagawa
- Ichinohe-machi Iwate
- Bodaiji Shiga
- Adogawacho Suehiro Shiga
- Kosaka-machi Akita
- Fujizukacho Kagawa
- Ajimumachi Sada Oita
- Aitakimachi Ishikawa
- Takamatsu Iwate
- Ekihigashidori Tochigi
- Asae Yamaguchi
- Hayashicho Kagawa
- Asakura Ki Kochi
- Rokkumachi Gumma
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