Average annual temperature is 9.2 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 64 days
Number of rainy days: 239 days
Number of snow days: 62 days
Look at detailed online map of Ōwataru
* Weather data for Ōwataru 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) | 6.8 | 6.4 | 17.3 | 19.0 | 24.3 | 26.0 | 29.0 | 32.5 | 29.4 | 20.2 | 19.8 | 11.3 |
| Average daytime temperature (°C) | -2.3 | -1.0 | 7.9 | 12.0 | 16.3 | 21.5 | 24.6 | 29.3 | 24.0 | 15.2 | 8.9 | 1.5 |
| Average temperature (°C) | -5.2 | -3.8 | 2.6 | 7.1 | 11.3 | 17.2 | 21.2 | 24.7 | 19.7 | 10.9 | 5.3 | -1.7 |
| Average night temperature (°C) | -7.8 | -6.5 | -1.5 | 3.6 | 7.4 | 14.1 | 18.6 | 21.4 | 16.9 | 7.8 | 2.4 | -4.7 |
| Absolute minimum temperature (°C) | -15.0 | -12.6 | -8.1 | -2.1 | -2.5 | 8.9 | 13.8 | 19.7 | 9.7 | 1.5 | -7.0 | -13.2 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 5.5 | 5.6 | 8.3 | 8.7 | 9.2 | 8.3 | 8.9 | 10.7 | 8.0 | 8.4 | 5.5 | 4.6 |
| Precipitation (mm) | 79 | 107 | 85 | 150 | 157 | 189 | 289 | 79 | 191 | 150 | 214 | 120 |
| Sunny days | 1 | 1 | 14 | 8 | 8 | 5 | 4 | 3 | 4 | 10 | 4 | 2 |
| Rainy days | 9 | 6 | 13 | 22 | 23 | 25 | 27 | 28 | 26 | 21 | 23 | 16 |
| Snow days | 21 | 21 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 13 |
The best time to visit Ōwataru during the most sunny months:
The largest precipitation sum in Ōwataru is at