Climate averages 1991–2020
Ueda 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 Ueda: daytime highs average 6.7°C and nights cool to about -1.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 88 mm of rain on roughly 16 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 44 min on an average December day.
The nearest other city in this atlas is Saku (27 km away). In December its highs average 6.9°C, about as warm as Ueda, with 48 mm of rain.
Among the 303 cities listed in Japan, Ueda ranks 263rd of 303 for the warmest December highs and 245th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Ueda is 2.8°C cooler than that mean.
From December to January, average highs fall by 3.3°C to 3.4°C, and monthly rainfall rises from 88 mm to 90 mm.
The annual picture
December in context
Monthly rainfall
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
Ueda climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.4°C-4.4°C | -4.4°C | 90 | 16.6 | 10.010 h |
| February | 4.5°C-4.4°C | -4.4°C | 85 | 13.7 | 10.811 h |
| March | 8.8°C-1.0°C | -1.0°C | 118 | 15.3 | 11.912 h |
| April | 15.7°C4.3°C | 4.3°C | 107 | 13.5 | 13.113 h |
| May | 21.1°C10.2°C | 10.2°C | 123 | 13.9 | 14.114 h |
| June | 24.1°C15.1°C | 15.1°C | 168 | 17.2 | 14.615 h |
| July | 27.4°C19.2°C | 19.2°C | 209 | 20.3 | 14.414 h |
| August | 28.7°C20.2°C | 20.2°C | 134 | 16.1 | 13.514 h |
| September | 24.4°C16.2°C | 16.2°C | 161 | 15.3 | 12.412 h |
| October | 18.4°C9.8°C | 9.8°C | 150 | 14.2 | 11.311 h |
| November | 12.8°C3.5°C | 3.5°C | 87 | 12.9 | 10.310 h |
| December, selected | 6.7°C-1.4°C | -1.4°C | 88 | 16.1 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
- Saku in DecemberJapan · 27 kmHigh 6.9°C · Low -1.1°C · 48 mm rain
- Nagano in DecemberJapan · 29 kmHigh 5.3°C · Low -2.3°C · 138 mm rain
- Matsumoto in DecemberJapan · 34 kmHigh 5.7°C · Low -3.4°C · 107 mm rain
- Azumino in DecemberJapan · 38 kmHigh 4.9°C · Low -3.8°C · 107 mm rain
- Shibukawa in DecemberJapan · 65 kmHigh 8.4°C · Low 0.4°C · 59 mm rain
- Takasaki in DecemberJapan · 66 kmHigh 9.5°C · Low 0.2°C · 61 mm rain
- Maebashi in DecemberJapan · 72 kmHigh 9.3°C · Low 0.4°C · 59 mm rain
- Kai in DecemberJapan · 82 kmHigh 8.9°C · Low 1.2°C · 60 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 Ueda) is explained once on the Ueda year overview and on the Sources, method and limits page.