Aomori weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: May – October
What is the weather like in Aomori in December?
In December, Aomori is freezing cold: daytime highs average 3 °C, and nights often drop below freezing (−3 °C). The sea averages 12.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Precipitation, often as snow, falls on about 16 days, totalling 86 mm. Snow falls on about 11 days. All in all, December is not an ideal month for a holiday in Aomori.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 15 | 4 | 8 |
| Day | 10° | 3° | 0° |
| Night | 3° | −3° | −6° |
| Sea | 15° | 12° | 10° |
| Sun | 3 h | 2 h | 2 h |
| Rain days | 15 | 16 | 14 |
More details for December
- Daylight
- 9 h 16 min06:54 – 16:10
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 71 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 11 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %14 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Aomori in December: quick answers
Is Aomori hot in December?
No. In December, Aomori is freezing cold: daytime highs average 3 °C and nights drop to about −3 °C.
Can you swim in Aomori in December?
Only if you don't mind cold water: in December the sea averages just 12.4 °C. Comfortable swimming is possible from August to September.
Does it rain much in Aomori in December?
It rains often – on about 16 days, adding up to 86 mm.
Aomori month by month
The whole year in AomoriAll destinations: JapanWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences