The tables below give monthly averages for rainfall plus snowfall during December 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 December
| Days |
Place |
Inches |
Millimetres |
| 12 |
Abashiri |
2.3 |
59 |
| 21 |
Asahikawa |
3.8 |
97 |
| 15 |
Hakodate |
3.3 |
85 |
| 6 |
Obihiro |
1.8 |
46 |
| 15 |
Sapporo |
4.4 |
112 |
| 8 |
Tomakomai |
2.0 |
51 |
| 21 |
Wakkanai |
4.4 |
113 |
Tōhoku
December averages for total rainfall plus snowfall
| Days |
Place |
Inches |
Millimetres |
| 21 |
Aomori |
5.9 |
151 |
| 7 |
Fukushima |
1.6 |
42 |
| 5 |
Iwaki |
1.7 |
44 |
| 11 |
Morioka |
2.8 |
71 |
| 5 |
Sendai |
1.4 |
37 |
Kantō
Average amount of rain and snow in December
| Days |
Place |
Inches |
Millimetres |
| 5 |
Chiba |
2.0 |
52 |
| 13 |
Hachijo-jima Island |
7.2 |
183 |
| 3 |
Maebashi |
0.9 |
23 |
| 6 |
Nikko |
2.0 |
51 |
| 4 |
Tokyo |
2.0 |
51 |
| 3 |
Utsunomiya |
1.4 |
36 |
| 5 |
Yokohama |
2.2 |
55 |
Chūbu
Precipitation totals for December
| Days |
Place |
Inches |
Millimetres |
| 20 |
Aikawa, Sado Island |
5.9 |
150 |
| 8 |
Gifu |
2.3 |
58 |
| 5 |
Hamamatsu |
2.1 |
52 |
| 22 |
Kanazawa |
11.1 |
282 |
| 8 |
Nagano |
1.8 |
46 |
| 6 |
Nagoya |
1.8 |
45 |
| 22 |
Niigata |
8.6 |
217 |
| 5 |
Shizuoka |
2.5 |
63 |
Kansai
Total precipitation during December
| Days |
Place |
Inches |
Millimetres |
| 5 |
Himeji |
1.4 |
37 |
| 5 |
Kobe |
1.6 |
41 |
| 6 |
Kyoto |
1.9 |
48 |
| 6 |
Nara |
1.9 |
47 |
| 6 |
Osaka |
1.7 |
44 |
| 5 |
Tsu |
1.5 |
39 |
| 5 |
Wakayama |
1.9 |
50 |
Chūgoku
Average amount of precipitation in December
| Days |
Place |
Inches |
Millimetres |
| 4 |
Fukuyama |
1.2 |
31 |
| 5 |
Hiroshima |
1.6 |
41 |
| 4 |
Kure |
1.4 |
36 |
| 16 |
Matsue |
5.4 |
138 |
| 4 |
Okayama |
1.2 |
31 |
| 17 |
Tottori |
7.6 |
194 |
| 9 |
Yamaguchi |
2.3 |
59 |
Shikoku
December precipitation averages
| Days |
Place |
Inches |
Millimetres |
| 5 |
Kochi |
2.3 |
58 |
| 6 |
Matsuyama |
1.8 |
46 |
| 6 |
Takamatsu |
1.5 |
37 |
| 5 |
Tokushima |
1.8 |
45 |
Kyūshū
Total December precipitation
| Days |
Place |
Inches |
Millimetres |
| 9 |
Fukuoka |
2.4 |
60 |
| 8 |
Kagoshima |
2.8 |
71 |
| 7 |
Kumamoto |
2.1 |
54 |
| 5 |
Miyazaki |
2.4 |
60 |
| 8 |
Nagasaki |
2.4 |
61 |
| 4 |
Oita |
1.4 |
34 |
| 9 |
Wadomari, Okinoerabu Island |
3.7 |
95 |
| 14 |
Yakushima Island Airport |
10.3 |
263 |
Okinawa
Average December precipitation
| Days |
Place |
Inches |
Millimetres |
| 13 |
Iriomote Island |
6.0 |
153 |
| 11 |
Ishigaki Island |
5.0 |
126 |
| 10 |
Kume |
4.8 |
122 |
| 10 |
Miyakojima |
5.2 |
131 |
| 9 |
Nago |
3.8 |
96 |
| 8 |
Naha |
4.0 |
103 |
| 14 |
Yonaguni Island |
7.1 |
180 |