Average annual temperature is 10.7 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -12.0 °C
Number of sunny days: 71 days
Number of rainy days: 248 days
Number of snow days: 46 days
Look at detailed online map of Ōnuma-gun
* Weather data for Ōnuma-gun Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 10.2 | 8.7 | 16.7 | 22.5 | 29.0 | 25.5 | 31.5 | 32.2 | 31.2 | 22.6 | 21.9 | 13.2 |
| Average daytime temperature (°C) | 0.7 | 1.6 | 9.6 | 15.1 | 18.7 | 22.3 | 27.4 | 30.4 | 25.5 | 16.5 | 11.4 | 5.8 |
| Average temperature (°C) | -2.7 | -1.9 | 4.0 | 8.8 | 13.1 | 18.0 | 22.7 | 24.9 | 21.0 | 11.4 | 6.4 | 1.5 |
| Average night temperature (°C) | -5.5 | -4.8 | -0.5 | 3.6 | 8.2 | 14.5 | 18.7 | 20.6 | 17.8 | 7.7 | 2.3 | -1.8 |
| Absolute minimum temperature (°C) | -12.0 | -10.2 | -7.9 | -4.1 | -0.4 | 8.1 | 14.3 | 17.7 | 9.2 | 3.2 | -3.4 | -8.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.8 | 5.2 | 7.8 | 7.9 | 8.4 | 7.8 | 9.9 | 11.8 | 8.3 | 8.3 | 5.9 | 4.9 |
| Precipitation (mm) | 129 | 113 | 80 | 99 | 147 | 276 | 152 | 88 | 168 | 110 | 190 | 124 |
| Sunny days | 5 | 5 | 11 | 13 | 11 | 4 | 1 | 2 | 4 | 6 | 6 | 3 |
| Rainy days | 5 | 9 | 18 | 17 | 20 | 26 | 30 | 29 | 26 | 25 | 23 | 20 |
| Snow days | 21 | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 |
The best time to visit Ōnuma-gun during the most sunny months:
The largest precipitation sum in Ōnuma-gun is at