Average annual temperature is 14.6 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 91 days
Number of rainy days: 260 days
Number of snow days: 14 days
Look at detailed online map of Hakoiwa
* Weather data for Hakoiwa 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) | 14.8 | 13.8 | 22.9 | 24.1 | 29.2 | 29.3 | 32.7 | 37.1 | 34.3 | 25.0 | 26.6 | 17.1 |
| Average daytime temperature (°C) | 4.8 | 5.4 | 12.9 | 16.3 | 20.4 | 24.8 | 29.2 | 34.0 | 28.8 | 19.6 | 15.3 | 8.8 |
| Average temperature (°C) | 2.4 | 2.8 | 8.0 | 11.8 | 15.9 | 21.2 | 25.4 | 29.4 | 24.6 | 15.6 | 11.6 | 5.8 |
| Average night temperature (°C) | 0.4 | 0.4 | 3.8 | 7.7 | 11.9 | 18.1 | 22.1 | 24.8 | 21.3 | 12.3 | 8.3 | 3.1 |
| Absolute minimum temperature (°C) | -5.7 | -5.7 | -1.1 | 0.8 | 5.6 | 14.4 | 15.6 | 22.1 | 13.8 | 7.9 | 3.5 | -2.0 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.1 | 4.7 | 7.9 | 7.9 | 8.3 | 8.2 | 9.5 | 12.0 | 7.9 | 7.9 | 5.6 | 3.6 |
| Precipitation (mm) | 202 | 162 | 136 | 127 | 186 | 223 | 185 | 23 | 180 | 263 | 265 | 307 |
| Sunny days | 1 | 1 | 14 | 13 | 11 | 4 | 10 | 11 | 9 | 8 | 6 | 3 |
| Rainy days | 24 | 20 | 17 | 17 | 20 | 26 | 21 | 20 | 21 | 23 | 24 | 27 |
| Snow days | 6 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Hakoiwa during the most sunny months:
The largest precipitation sum in Hakoiwa is at