Average annual temperature is 12.4 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -11.1 °C
Number of sunny days: 89 days
Number of rainy days: 243 days
Number of snow days: 33 days
Look at detailed online map of Semi
* Weather data for Semi 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) | 7.6 | 8.8 | 21.4 | 24.1 | 28.4 | 28.4 | 32.9 | 35.3 | 34.0 | 23.6 | 22.8 | 14.7 |
| Average daytime temperature (°C) | 2.2 | 3.1 | 12.1 | 15.9 | 19.6 | 24.1 | 28.2 | 32.7 | 28.0 | 18.3 | 12.6 | 6.5 |
| Average temperature (°C) | -0.7 | -0.1 | 5.6 | 10.1 | 14.2 | 19.7 | 23.7 | 27.6 | 23.1 | 13.2 | 8.6 | 3.0 |
| Average night temperature (°C) | -3.5 | -3.3 | 0.6 | 5.5 | 9.5 | 16.2 | 20.0 | 23.6 | 19.8 | 9.4 | 5.6 | 0.0 |
| Absolute minimum temperature (°C) | -11.1 | -9.7 | -6.2 | -1.2 | 1.5 | 10.8 | 15.2 | 21.1 | 11.2 | 5.1 | -1.3 | -6.4 |
| 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 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.2 | 5.6 | 8.1 | 8.4 | 8.5 | 8.0 | 9.1 | 11.7 | 7.7 | 7.7 | 5.5 | 3.4 |
| Precipitation (mm) | 129 | 104 | 84 | 124 | 166 | 177 | 235 | 40 | 150 | 130 | 262 | 219 |
| Sunny days | 0 | 3 | 15 | 11 | 12 | 6 | 6 | 9 | 5 | 11 | 7 | 4 |
| Rainy days | 17 | 11 | 16 | 19 | 19 | 24 | 25 | 22 | 25 | 20 | 23 | 22 |
| Snow days | 14 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The best time to visit Semi during the most sunny months:
The largest precipitation sum in Semi is at