Average annual temperature is 7.3 °C
Absolute maximum temperature: 31.3 °C
Absolute minimum temperature: -17.4 °C
Number of sunny days: 94 days
Number of rainy days: 186 days
Number of snow days: 85 days
Look at detailed online map of Hamatonbetsu
* Weather data for Hamatonbetsu 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) | 6.2 | 5.6 | 15.1 | 17.0 | 21.1 | 26.8 | 28.0 | 31.3 | 25.6 | 20.2 | 16.4 | 9.6 |
| Average daytime temperature (°C) | -5.5 | -4.0 | 5.2 | 9.0 | 14.8 | 19.6 | 22.3 | 23.9 | 21.6 | 14.4 | 6.7 | -1.4 |
| Average temperature (°C) | -8.5 | -7.0 | 1.5 | 5.3 | 10.7 | 15.8 | 19.3 | 21.3 | 18.0 | 11.0 | 3.5 | -4.2 |
| Average night temperature (°C) | -11.5 | -10.0 | -1.3 | 2.8 | 7.5 | 12.7 | 17.1 | 19.6 | 15.1 | 8.4 | 0.9 | -7.3 |
| Absolute minimum temperature (°C) | -17.4 | -14.6 | -11.2 | -4.0 | 0.4 | 4.6 | 11.1 | 15.2 | 8.7 | 1.9 | -7.1 | -14.6 |
| 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) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 5.8 | 5.5 | 7.8 | 8.0 | 10.3 | 9.0 | 8.3 | 6.9 | 8.1 | 7.6 | 4.9 | 3.9 |
| Precipitation (mm) | 43 | 57 | 47 | 147 | 35 | 109 | 162 | 194 | 174 | 120 | 141 | 106 |
| Sunny days | 3 | 2 | 14 | 7 | 13 | 9 | 13 | 5 | 10 | 9 | 5 | 4 |
| Rainy days | 3 | 5 | 9 | 22 | 18 | 21 | 18 | 26 | 20 | 22 | 17 | 5 |
| Snow days | 25 | 21 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 22 |
The best time to visit Hamatonbetsu during the most sunny months:
Months with the longest average daylight duration in Hamatonbetsu:
The largest precipitation sum in Hamatonbetsu is at