The tables below give monthly averages for rainfall plus snowfall during January at cities and towns in Japan. Each place has a total for how many days of wet weather it usually gets this month 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).
The month's 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 monthly precipitation in January
| Days |
Place |
Inches |
Millimetres |
| 13 |
Abashiri |
2.1 |
55 |
| 18 |
Asahikawa |
2.7 |
70 |
| 16 |
Hakodate |
3.0 |
77 |
| 5 |
Obihiro |
1.7 |
43 |
| 18 |
Sapporo |
4.5 |
114 |
| 7 |
Tomakomai |
1.6 |
40 |
| 20 |
Wakkanai |
3.3 |
84 |
Tōhoku
January averages for total rainfall plus snowfall
| Days |
Place |
Inches |
Millimetres |
| 22 |
Aomori |
5.7 |
145 |
| 8 |
Fukushima |
1.9 |
49 |
| 4 |
Iwaki |
2.1 |
53 |
| 10 |
Morioka |
2.1 |
53 |
| 5 |
Sendai |
1.5 |
37 |
Kantō
Average amount of rain and snow in January
| Days |
Place |
Inches |
Millimetres |
| 5 |
Chiba |
2.3 |
60 |
| 14 |
Hachijo-jima Island |
7.5 |
190 |
| 3 |
Maebashi |
1.0 |
26 |
| 6 |
Nikko |
2.1 |
52 |
| 5 |
Tokyo |
2.1 |
52 |
| 4 |
Utsunomiya |
1.3 |
34 |
| 5 |
Yokohama |
2.3 |
59 |
Chūbu
Precipitation totals for January
| Days |
Place |
Inches |
Millimetres |
| 20 |
Aikawa, Sado Island |
5.0 |
127 |
| 8 |
Gifu |
2.6 |
67 |
| 6 |
Hamamatsu |
2.2 |
57 |
| 24 |
Kanazawa |
10.6 |
270 |
| 10 |
Nagano |
2.0 |
51 |
| 5 |
Nagoya |
1.9 |
48 |
| 22 |
Niigata |
7.3 |
186 |
| 6 |
Shizuoka |
3.0 |
75 |
Kansai
Total precipitation during January
| Days |
Place |
Inches |
Millimetres |
| 5 |
Himeji |
1.4 |
36 |
| 5 |
Kobe |
1.5 |
38 |
| 6 |
Kyoto |
2.0 |
50 |
| 6 |
Nara |
2.0 |
50 |
| 6 |
Osaka |
1.8 |
45 |
| 5 |
Tsu |
1.7 |
44 |
| 6 |
Wakayama |
1.7 |
44 |
Chūgoku
Average amount of precipitation in January
| Days |
Place |
Inches |
Millimetres |
| 5 |
Fukuyama |
1.4 |
35 |
| 6 |
Hiroshima |
1.8 |
45 |
| 5 |
Kure |
1.6 |
41 |
| 18 |
Matsue |
5.8 |
147 |
| 5 |
Okayama |
1.3 |
34 |
| 20 |
Tottori |
8.0 |
202 |
| 10 |
Yamaguchi |
2.8 |
72 |
Shikoku
January precipitation averages
| Days |
Place |
Inches |
Millimetres |
| 5 |
Kochi |
2.3 |
59 |
| 7 |
Matsuyama |
2.0 |
52 |
| 7 |
Takamatsu |
1.5 |
38 |
| 5 |
Tokushima |
1.5 |
39 |
Kyūshū
Total January precipitation
| Days |
Place |
Inches |
Millimetres |
| 9 |
Fukuoka |
2.7 |
68 |
| 9 |
Kagoshima |
3.1 |
78 |
| 7 |
Kumamoto |
2.4 |
60 |
| 6 |
Miyazaki |
2.5 |
64 |
| 9 |
Nagasaki |
2.5 |
64 |
| 5 |
Oita |
1.8 |
45 |
| 12 |
Wadomari, Okinoerabu Island |
4.2 |
106 |
| 16 |
Yakushima Island Airport |
10.7 |
273 |
Okinawa
Average January precipitation
| Days |
Place |
Inches |
Millimetres |
| 14 |
Iriomote Island |
6.6 |
169 |
| 12 |
Ishigaki Island |
5.1 |
131 |
| 13 |
Kume |
5.5 |
139 |
| 13 |
Miyakojima |
5.1 |
131 |
| 12 |
Nago |
4.4 |
111 |
| 11 |
Naha |
4.2 |
107 |
| 16 |
Yonaguni Island |
7.8 |
199 |