Average annual temperature is 15.1 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 148 days
Number of rainy days: 212 days
Number of snow days: 5 days
Look at detailed online map of Sumada
* Weather data for Sumada 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) | 15.2 | 14.6 | 22.1 | 24.1 | 27.4 | 29.6 | 34.3 | 35.4 | 33.8 | 26.1 | 24.2 | 19.6 |
| Average daytime temperature (°C) | 7.4 | 8.2 | 15.1 | 17.7 | 21.7 | 25.3 | 30.3 | 32.1 | 29.5 | 20.9 | 15.8 | 10.6 |
| Average temperature (°C) | 2.9 | 4.2 | 10.0 | 12.9 | 17.0 | 21.2 | 26.0 | 27.3 | 24.9 | 16.3 | 11.4 | 6.4 |
| Average night temperature (°C) | -0.8 | 0.9 | 6.0 | 9.2 | 13.5 | 17.9 | 22.7 | 24.0 | 21.8 | 12.8 | 7.9 | 2.9 |
| Absolute minimum temperature (°C) | -12.2 | -2.7 | -1.1 | 4.3 | 8.3 | 13.8 | 19.7 | 22.1 | 18.1 | 8.1 | 0.9 | -4.2 |
| 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 | 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 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.2 | 6.1 | 8.3 | 7.5 | 8.8 | 6.7 | 9.3 | 9.9 | 9.3 | 8.8 | 7.3 | 6.6 |
| Precipitation (mm) | 48 | 39 | 95 | 197 | 256 | 275 | 102 | 199 | 68 | 37 | 113 | 40 |
| Sunny days | 12 | 11 | 16 | 16 | 14 | 9 | 9 | 2 | 8 | 15 | 18 | 18 |
| Rainy days | 16 | 15 | 15 | 14 | 17 | 21 | 22 | 29 | 22 | 16 | 12 | 13 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Sumada during the most sunny months:
The largest precipitation sum in Sumada is at