Climate averages 1991–2020
Hachinohe weather
in December.
A cold, moderately wet month: the 10th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Hachinohe: daytime highs average 3.9°C and nights cool to about -2.5°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 50 mm of rain on roughly 8 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 20 min on an average December day.
The nearest other city in this atlas is Aomori (74 km away). In December its highs average 2.6°C, 1.4°C cooler than Hachinohe, with 82 mm of rain.
Among the 303 cities listed in Japan, Hachinohe ranks joint 282nd of 303 for the warmest December highs and joint 18th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Hachinohe is 5.6°C cooler than that mean.
From December to January, average highs fall by 2.8°C to 1.1°C, and monthly precipitation falls from 50 mm to 46 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
Hachinohe climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.1°C-5.6°C | -5.6°C | 46 | 7.4 | 9.610 h |
| February | 1.9°C-5.8°C | -5.8°C | 48 | 7.5 | 10.611 h |
| March | 6.4°C-2.2°C | -2.2°C | 72 | 10.6 | 11.912 h |
| April | 13.0°C3.6°C | 3.6°C | 78 | 11.9 | 13.313 h |
| May | 18.3°C9.2°C | 9.2°C | 88 | 11.4 | 14.414 h |
| June | 21.4°C13.6°C | 13.6°C | 91 | 10.7 | 15.015 h |
| July | 24.8°C18.2°C | 18.2°C | 132 | 13.4 | 14.815 h |
| August | 26.3°C19.6°C | 19.6°C | 132 | 13.0 | 13.814 h |
| September | 22.9°C16.0°C | 16.0°C | 127 | 11.2 | 12.513 h |
| October | 17.2°C9.5°C | 9.5°C | 102 | 9.2 | 11.211 h |
| November | 10.6°C3.1°C | 3.1°C | 54 | 9.0 | 10.010 h |
| December, selected | 3.9°C-2.5°C | -2.5°C | 50 | 8.0 | 9.39 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
- Aomori in DecemberJapan · 74 kmHigh 2.6°C · Low -3.4°C · 82 mm rain
- Hirosaki in DecemberJapan · 87 kmHigh 2.3°C · Low -4.2°C · 106 mm rain
- Morioka in DecemberJapan · 94 kmHigh 2.3°C · Low -4.5°C · 77 mm rain
- Hanamaki in DecemberJapan · 128 kmHigh 3.5°C · Low -3.5°C · 98 mm rain
- Kitakami in DecemberJapan · 139 kmHigh 3.7°C · Low -3.0°C · 86 mm rain
- Daisen in DecemberJapan · 146 kmHigh 3.7°C · Low -2.7°C · 130 mm rain
- Akita in DecemberJapan · 146 kmHigh 4.6°C · Low 0.3°C · 199 mm rain
- Ōshū in DecemberJapan · 154 kmHigh 4.9°C · Low -1.9°C · 68 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 Hachinohe) is explained once on the Hachinohe year overview and on the Sources, method and limits page.