Average annual temperature is 8.5 °C
Absolute maximum temperature: 31.9 °C
Absolute minimum temperature: -17.6 °C
Number of sunny days: 170 days
Number of rainy days: 162 days
Number of snow days: 33 days
Look at detailed online map of Heiwa
* Weather data for Heiwa 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) | 6.5 | 8.0 | 13.5 | 17.0 | 22.9 | 26.8 | 31.9 | 31.9 | 27.6 | 21.3 | 18.7 | 11.0 |
| Average daytime temperature (°C) | -2.5 | -1.2 | 7.1 | 11.4 | 15.6 | 19.0 | 23.9 | 25.3 | 22.9 | 15.9 | 9.9 | 1.8 |
| Average temperature (°C) | -7.6 | -5.5 | 2.0 | 7.3 | 10.8 | 15.3 | 20.5 | 22.6 | 19.9 | 12.1 | 6.3 | -2.0 |
| Average night temperature (°C) | -12.3 | -10.4 | -2.6 | 3.4 | 7.1 | 12.6 | 18.0 | 20.7 | 17.2 | 8.7 | 2.9 | -4.9 |
| Absolute minimum temperature (°C) | -17.6 | -17.2 | -10.7 | -3.2 | 3.0 | 7.1 | 13.5 | 15.8 | 12.5 | 3.4 | -5.6 | -11.6 |
| 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) | 9.4 | 10.5 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 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) | 7.5 | 7.8 | 8.6 | 8.4 | 9.8 | 8.5 | 9.8 | 7.8 | 7.6 | 8.2 | 6.9 | 6.6 |
| Precipitation (mm) | 23 | 38 | 87 | 153 | 51 | 53 | 62 | 82 | 162 | 80 | 94 | 44 |
| Sunny days | 18 | 15 | 18 | 9 | 13 | 12 | 15 | 10 | 10 | 16 | 15 | 19 |
| Rainy days | 3 | 1 | 10 | 21 | 18 | 18 | 16 | 21 | 20 | 15 | 15 | 4 |
| Snow days | 10 | 12 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
Months with the longest average daylight duration in Heiwa:
The largest precipitation sum in Heiwa is at