Climate averages 1991–2020
Hakodate weather
in December.
A cold, moderately wet month: the 10th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Hakodate: daytime highs average 2.1°C and nights cool to about -2.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 70 mm of rain on roughly 11 days, which makes December a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 12 min on an average December day.
The nearest other city in this atlas is Muroran (64 km away). In December its highs average 0.3°C, 1.8°C cooler than Hakodate, with 69 mm of precipitation.
Among the 303 cities listed in Japan, Hakodate ranks 291st of 303 for the warmest December highs and joint 173rd of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Hakodate is 7.4°C cooler than that mean.
From December to January, average highs fall by 2.6°C to -0.5°C, and monthly precipitation falls from 70 mm to 52 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hakodate climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.5°C-5.0°C | -5.0°C | 52 | 9.2 | 9.510 h |
| February | 0.1°C-5.1°C | -5.1°C | 52 | 8.0 | 10.611 h |
| March | 3.5°C-2.2°C | -2.2°C | 66 | 9.6 | 11.912 h |
| April | 8.9°C2.4°C | 2.4°C | 83 | 9.8 | 13.313 h |
| May | 13.9°C7.7°C | 7.7°C | 119 | 11.6 | 14.515 h |
| June | 17.8°C12.6°C | 12.6°C | 121 | 11.6 | 15.215 h |
| July | 21.6°C17.3°C | 17.3°C | 178 | 14.9 | 14.915 h |
| August | 23.7°C19.7°C | 19.7°C | 206 | 14.8 | 13.914 h |
| September | 21.3°C16.9°C | 16.9°C | 185 | 12.8 | 12.513 h |
| October | 15.3°C10.4°C | 10.4°C | 114 | 11.4 | 11.111 h |
| November | 8.1°C3.3°C | 3.3°C | 87 | 11.0 | 9.910 h |
| December, selected | 2.1°C-2.2°C | -2.2°C | 70 | 10.5 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Muroran in DecemberJapan · 64 kmHigh 0.3°C · Low -4.2°C · 69 mm precipitation
- Aomori in DecemberJapan · 107 kmHigh 2.6°C · Low -3.4°C · 82 mm rain
- Tomakomai in DecemberJapan · 119 kmHigh 0.7°C · Low -4.2°C · 63 mm precipitation
- Hirosaki in DecemberJapan · 133 kmHigh 2.3°C · Low -4.2°C · 106 mm rain
- Chitose in DecemberJapan · 138 kmHigh 0.5°C · Low -5.6°C · 54 mm precipitation
- Eniwa in DecemberJapan · 142 kmHigh -0.3°C · Low -6.5°C · 62 mm precipitation
- Sapporo in DecemberJapan · 152 kmHigh -0.3°C · Low -5.3°C · 73 mm precipitation
- Hachinohe in DecemberJapan · 156 kmHigh 3.9°C · Low -2.5°C · 50 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hakodate) is explained once on the Hakodate year overview and on the Sources, method and limits page.