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 |