Average annual temperature is 13.0 °C
Absolute maximum temperature: 30.4 °C
Absolute minimum temperature: -10.7 °C
Number of sunny days: 137 days
Number of rainy days: 219 days
Number of snow days: 9 days
Look at detailed online map of Obirakōzan
* Weather data for Obirakōzan 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) | 17.3 | 15.1 | 20.5 | 24.2 | 26.2 | 27.9 | 30.4 | 30.3 | 29.3 | 25.7 | 22.8 | 17.2 |
| Average daytime temperature (°C) | 6.3 | 8.6 | 14.2 | 16.8 | 20.2 | 23.2 | 27.4 | 26.7 | 25.9 | 18.6 | 14.3 | 8.6 |
| Average temperature (°C) | 1.8 | 3.8 | 8.8 | 11.4 | 15.4 | 19.2 | 23.1 | 23.1 | 21.4 | 13.5 | 9.2 | 4.2 |
| Average night temperature (°C) | -1.4 | 0.3 | 4.5 | 7.1 | 11.7 | 16.1 | 20.3 | 20.7 | 18.6 | 9.8 | 5.6 | 0.9 |
| Absolute minimum temperature (°C) | -10.7 | -4.7 | -3.9 | 0.5 | 4.8 | 10.3 | 18.4 | 19.0 | 14.7 | 5.6 | -2.2 | -6.5 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.0 | 6.7 | 7.9 | 7.9 | 8.7 | 6.4 | 9.5 | 8.6 | 9.3 | 8.7 | 8.2 | 6.4 |
| Precipitation (mm) | 57 | 114 | 137 | 165 | 190 | 362 | 141 | 468 | 82 | 57 | 38 | 63 |
| Sunny days | 17 | 12 | 15 | 15 | 15 | 8 | 2 | 1 | 5 | 17 | 18 | 12 |
| Rainy days | 11 | 14 | 16 | 15 | 16 | 22 | 29 | 30 | 25 | 14 | 11 | 16 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The largest precipitation sum in Obirakōzan is at