Average annual temperature is 10.4 °C
Absolute maximum temperature: 29.6 °C
Absolute minimum temperature: -15.2 °C
Number of sunny days: 139 days
Number of rainy days: 200 days
Number of snow days: 26 days
Look at detailed online map of Oiwake
* Weather data for Oiwake 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) | 11.5 | 12.2 | 16.6 | 21.6 | 25.4 | 25.9 | 29.6 | 28.8 | 29.2 | 22.3 | 20.4 | 16.5 |
| Average daytime temperature (°C) | 3.1 | 4.4 | 10.8 | 14.8 | 17.7 | 21.4 | 26.3 | 26.3 | 24.4 | 16.0 | 11.5 | 7.0 |
| Average temperature (°C) | -2.2 | -0.9 | 5.5 | 8.9 | 12.7 | 17.2 | 21.8 | 22.3 | 20.0 | 10.6 | 6.5 | 1.7 |
| Average night temperature (°C) | -5.7 | -4.7 | 1.0 | 3.7 | 8.3 | 13.6 | 17.7 | 19.2 | 16.7 | 6.2 | 2.7 | -2.2 |
| Absolute minimum temperature (°C) | -15.2 | -9.6 | -9.7 | -2.5 | 1.0 | 6.1 | 14.1 | 16.7 | 10.6 | -0.1 | -4.3 | -7.8 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 7.6 | 8.6 | 9.2 | 9.5 | 8.2 | 10.0 | 10.0 | 9.0 | 8.9 | 7.7 | 7.3 |
| Precipitation (mm) | 33 | 47 | 84 | 100 | 198 | 225 | 136 | 102 | 139 | 73 | 52 | 48 |
| Sunny days | 15 | 14 | 15 | 13 | 14 | 7 | 5 | 3 | 6 | 15 | 15 | 17 |
| Rainy days | 6 | 6 | 15 | 17 | 17 | 23 | 26 | 28 | 24 | 16 | 13 | 9 |
| Snow days | 10 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The largest precipitation sum in Oiwake is at