Average annual temperature is 10.0 °C
Absolute maximum temperature: 29.6 °C
Absolute minimum temperature: -13.1 °C
Number of sunny days: 98 days
Number of rainy days: 199 days
Number of snow days: 68 days
Look at detailed online map of Horobetsukōzan
* Weather data for Horobetsukōzan 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) | 9.2 | 7.4 | 13.0 | 15.5 | 22.1 | 24.4 | 29.1 | 29.6 | 26.7 | 21.5 | 18.7 | 11.1 |
| Average daytime temperature (°C) | -1.8 | -0.1 | 7.2 | 11.2 | 15.8 | 19.7 | 24.5 | 27.0 | 23.3 | 16.1 | 9.3 | 1.7 |
| Average temperature (°C) | -4.4 | -2.8 | 3.6 | 7.9 | 12.1 | 16.8 | 21.8 | 24.6 | 20.7 | 13.1 | 6.5 | -0.6 |
| Average night temperature (°C) | -7.0 | -5.7 | 0.7 | 5.2 | 9.0 | 14.5 | 19.7 | 22.8 | 18.7 | 10.8 | 3.9 | -2.7 |
| Absolute minimum temperature (°C) | -12.9 | -13.1 | -6.9 | 0.2 | 3.7 | 9.2 | 14.8 | 19.9 | 13.0 | 4.8 | -4.6 | -9.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.8 | 7.4 | 8.9 | 8.7 | 9.8 | 9.0 | 10.0 | 8.8 | 7.0 | 8.4 | 6.5 | 5.5 |
| Precipitation (mm) | 46 | 44 | 84 | 105 | 62 | 183 | 103 | 173 | 215 | 98 | 179 | 54 |
| Sunny days | 7 | 4 | 11 | 8 | 12 | 10 | 7 | 7 | 6 | 11 | 6 | 9 |
| Rainy days | 3 | 3 | 15 | 22 | 19 | 20 | 24 | 24 | 24 | 20 | 17 | 8 |
| Snow days | 21 | 21 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 14 |
The largest precipitation sum in Horobetsukōzan is at