The tables below give yearly averages for rainfall plus snowfall at cities and towns throughout Japan. Each place has a total for how many days of wet weather it usually gets a year and for the normal amount of precipitation.
The calculation of days only includes the days when precipitation totalled at least one millimetre (0.04 inches).
These annual precipitation statistics are long-term historical averages of weather data collected from 1981 to 2010.
You can jump to a separate table for each section of the country: Hokkaidō, Tōhoku, Kantō, Chūbu, Kansai, Chūgoku Shikoku, Kyūshū and Okinawa.
Hokkaidō
Average yearly precipitation
| Days |
Place |
Inches |
Millimetres |
| 117 |
Abashiri |
31.0 |
788 |
| 157 |
Asahikawa |
41.0 |
1042 |
| 133 |
Hakodate |
45.3 |
1152 |
| 86 |
Obihiro |
35.0 |
888 |
| 140 |
Sapporo |
43.6 |
1107 |
| 109 |
Tomakomai |
47.2 |
1198 |
| 152 |
Wakkanai |
41.8 |
1063 |
Tōhoku
Annual averages for rainfall plus snowfall
| Days |
Place |
Inches |
Millimetres |
| 162 |
Aomori |
51.2 |
1300 |
| 103 |
Fukushima |
45.9 |
1166 |
| 102 |
Iwaki |
55.5 |
1409 |
| 127 |
Morioka |
49.8 |
1266 |
| 99 |
Sendai |
49.4 |
1254 |
Kantō
Average amount of rain and snow a year
| Days |
Place |
Inches |
Millimetres |
| 104 |
Chiba |
54.6 |
1387 |
| 161 |
Hachijo-jima Island |
126.1 |
3202 |
| 102 |
Maebashi |
49.2 |
1249 |
| 131 |
Nikko |
85.7 |
2176 |
| 101 |
Tokyo |
60.2 |
1529 |
| 109 |
Utsunomiya |
58.8 |
1493 |
| 105 |
Yokohama |
66.5 |
1689 |
Chūbu
Average annual precipitation
| Days |
Place |
Inches |
Millimetres |
| 157 |
Aikawa, Sado Island |
59.3 |
1506 |
| 113 |
Gifu |
71.9 |
1828 |
| 103 |
Hamamatsu |
71.2 |
1809 |
| 177 |
Kanazawa |
94.4 |
2399 |
| 108 |
Nagano |
36.7 |
933 |
| 103 |
Nagoya |
60.4 |
1535 |
| 172 |
Niigata |
71.7 |
1821 |
| 107 |
Shizuoka |
91.5 |
2325 |
Kansai
Average annual precipitation
| Days |
Place |
Inches |
Millimetres |
| 93 |
Himeji |
47.2 |
1199 |
| 93 |
Kobe |
47.9 |
1216 |
| 104 |
Kyoto |
58.7 |
1491 |
| 106 |
Nara |
51.8 |
1316 |
| 98 |
Osaka |
50.4 |
1279 |
| 101 |
Tsu |
62.3 |
1581 |
| 96 |
Wakayama |
51.8 |
1317 |
Chūgoku
Average amount of precipitation a year
| Days |
Place |
Inches |
Millimetres |
| 88 |
Fukuyama |
44.0 |
1117 |
| 95 |
Hiroshima |
60.5 |
1538 |
| 90 |
Kure |
54.4 |
1381 |
| 151 |
Matsue |
70.4 |
1787 |
| 88 |
Okayama |
43.5 |
1106 |
| 159 |
Tottori |
75.4 |
1914 |
| 115 |
Yamaguchi |
74.3 |
1887 |
Shikoku
Annual precipitation totals
| Days |
Place |
Inches |
Millimetres |
| 109 |
Kochi |
100.3 |
2548 |
| 100 |
Matsuyama |
51.8 |
1315 |
| 97 |
Takamatsu |
42.6 |
1082 |
| 98 |
Tokushima |
57.2 |
1454 |
Kyūshū
Total annual precipitation
| Days |
Place |
Inches |
Millimetres |
| 111 |
Fukuoka |
63.5 |
1612 |
| 120 |
Kagoshima |
89.2 |
2266 |
| 110 |
Kumamoto |
78.2 |
1986 |
| 116 |
Miyazaki |
98.8 |
2509 |
| 110 |
Nagasaki |
73.1 |
1858 |
| 97 |
Oita |
64.7 |
1645 |
| 119 |
Wadomari, Okinoerabu Island |
72.3 |
1836 |
| 163 |
Yakushima Island Airport |
176.3 |
4477 |
Okinawa
Average yearly precipitation
| Days |
Place |
Inches |
Millimetres |
| 141 |
Iriomote Island |
90.7 |
2305 |
| 123 |
Ishigaki Island |
82.9 |
2107 |
| 128 |
Kume |
83.1 |
2112 |
| 127 |
Miyakojima |
79.6 |
2021 |
| 132 |
Nago |
79.5 |
2019 |
| 122 |
Naha |
80.3 |
2041 |
| 147 |
Yonaguni Island |
92.7 |
2354 |