Average annual temperature is 15.3 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -6.7 °C
Number of sunny days: 107 days
Number of rainy days: 250 days
Number of snow days: 8 days
Look at detailed online map of Seima
* Weather data for Seima 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) | 15.0 | 14.1 | 21.6 | 25.6 | 31.6 | 30.9 | 34.4 | 36.4 | 34.4 | 24.8 | 25.2 | 18.3 |
| Average daytime temperature (°C) | 6.2 | 6.8 | 14.3 | 17.2 | 21.7 | 25.4 | 30.3 | 33.6 | 29.9 | 20.1 | 15.5 | 9.8 |
| Average temperature (°C) | 3.0 | 3.5 | 9.7 | 12.9 | 17.3 | 21.7 | 26.4 | 29.1 | 25.4 | 15.9 | 11.7 | 6.3 |
| Average night temperature (°C) | 0.4 | 0.7 | 5.7 | 9.2 | 13.4 | 18.4 | 23.2 | 25.7 | 22.2 | 12.6 | 8.7 | 3.5 |
| Absolute minimum temperature (°C) | -6.7 | -4.7 | 0.4 | 2.9 | 5.3 | 13.6 | 18.6 | 23.4 | 16.9 | 6.7 | 0.8 | -2.9 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.6 | 6.4 | 7.9 | 8.2 | 9.2 | 7.9 | 9.4 | 10.7 | 8.6 | 8.4 | 6.4 | 4.9 |
| Precipitation (mm) | 179 | 105 | 153 | 219 | 235 | 346 | 216 | 107 | 178 | 160 | 218 | 234 |
| Sunny days | 2 | 8 | 16 | 14 | 14 | 9 | 9 | 6 | 6 | 11 | 7 | 5 |
| Rainy days | 25 | 17 | 15 | 16 | 17 | 21 | 22 | 25 | 24 | 20 | 23 | 25 |
| Snow days | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Seima during the most sunny months:
The largest precipitation sum in Seima is at