Average annual temperature is 16.1 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 138 days
Number of rainy days: 226 days
Number of snow days: 1 day
Look at detailed online map of Hachiman
* Weather data for Hachiman 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) | 15.7 | 16.8 | 27.3 | 26.1 | 28.2 | 32.8 | 35.2 | 33.8 | 33.0 | 30.7 | 25.1 | 20.9 |
| Average daytime temperature (°C) | 10.4 | 11.6 | 16.7 | 19.4 | 22.4 | 26.1 | 31.4 | 31.1 | 29.6 | 22.4 | 18.1 | 13.7 |
| Average temperature (°C) | 4.8 | 6.5 | 11.5 | 14.4 | 17.7 | 21.8 | 26.5 | 26.5 | 24.9 | 16.9 | 12.9 | 8.0 |
| Average night temperature (°C) | 0.4 | 1.8 | 6.7 | 9.8 | 13.5 | 18.3 | 22.3 | 22.9 | 21.1 | 11.9 | 8.5 | 3.4 |
| Absolute minimum temperature (°C) | -4.6 | -3.9 | -1.2 | 3.0 | 7.5 | 12.5 | 19.0 | 19.4 | 15.9 | 7.4 | 1.8 | -1.9 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 7.5 | 7.8 | 8.4 | 8.6 | 7.3 | 10.3 | 10.7 | 9.5 | 9.0 | 7.5 | 7.5 |
| Precipitation (mm) | 27 | 92 | 206 | 224 | 330 | 628 | 81 | 414 | 185 | 146 | 117 | 112 |
| Sunny days | 18 | 13 | 11 | 14 | 10 | 7 | 9 | 1 | 6 | 14 | 15 | 20 |
| Rainy days | 12 | 15 | 20 | 16 | 21 | 23 | 22 | 30 | 24 | 17 | 15 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hachiman during the most sunny months:
The largest precipitation sum in Hachiman is at