Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 98 days
Number of rainy days: 232 days
Number of snow days: 35 days
Look at detailed online map of Suwachō
* Weather data for Suwachō 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) | 11.5 | 12.1 | 19.8 | 23.3 | 29.8 | 30.2 | 33.9 | 33.6 | 32.3 | 23.6 | 21.5 | 15.0 |
| Average daytime temperature (°C) | 3.0 | 3.7 | 12.7 | 16.1 | 20.3 | 24.3 | 28.6 | 31.6 | 27.0 | 18.7 | 12.6 | 6.3 |
| Average temperature (°C) | -0.8 | -0.5 | 6.2 | 10.2 | 14.6 | 19.9 | 24.2 | 27.1 | 22.6 | 13.3 | 8.4 | 2.6 |
| Average night temperature (°C) | -4.2 | -5.2 | 0.7 | 5.2 | 9.4 | 16.3 | 20.3 | 23.9 | 19.5 | 9.0 | 4.9 | -0.7 |
| Absolute minimum temperature (°C) | -14.2 | -15.0 | -5.9 | -1.1 | -0.1 | 9.9 | 16.3 | 20.1 | 11.0 | 2.6 | -5.7 | -7.2 |
| 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) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 5.9 | 6.9 | 8.7 | 8.8 | 8.8 | 8.0 | 9.2 | 11.1 | 7.0 | 8.1 | 5.5 | 4.6 |
| Precipitation (mm) | 58 | 59 | 85 | 125 | 142 | 162 | 191 | 113 | 163 | 74 | 137 | 124 |
| Sunny days | 7 | 6 | 19 | 13 | 9 | 3 | 9 | 2 | 2 | 13 | 9 | 6 |
| Rainy days | 10 | 10 | 12 | 17 | 22 | 27 | 22 | 29 | 28 | 18 | 20 | 17 |
| Snow days | 14 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 |
The best time to visit Suwachō during the most sunny months:
The largest precipitation sum in Suwachō is at