Average annual temperature is 12.6 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -9.8 °C
Number of sunny days: 83 days
Number of rainy days: 237 days
Number of snow days: 45 days
Look at detailed online map of Shimoinnai
* Weather data for Shimoinnai 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) | 9.2 | 9.4 | 19.8 | 23.5 | 28.9 | 28.3 | 34.1 | 35.1 | 33.7 | 22.5 | 23.3 | 13.8 |
| Average daytime temperature (°C) | 1.9 | 2.7 | 10.7 | 15.5 | 20.0 | 24.0 | 28.3 | 33.0 | 27.6 | 18.3 | 12.7 | 6.1 |
| Average temperature (°C) | -0.8 | 0.0 | 5.4 | 10.1 | 14.7 | 19.9 | 24.1 | 27.8 | 23.0 | 13.8 | 8.9 | 3.0 |
| Average night temperature (°C) | -3.5 | -2.5 | 0.7 | 5.6 | 10.2 | 16.6 | 20.5 | 23.9 | 19.8 | 10.3 | 5.9 | -0.1 |
| Absolute minimum temperature (°C) | -9.8 | -7.3 | -5.3 | -1.1 | 1.3 | 11.2 | 16.7 | 21.1 | 11.6 | 5.2 | -3.8 | -6.8 |
| 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 | 12.4 | 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) | 4.0 | 5.2 | 8.3 | 8.3 | 8.7 | 7.6 | 8.1 | 11.6 | 7.5 | 7.7 | 4.9 | 3.1 |
| Precipitation (mm) | 146 | 115 | 85 | 125 | 170 | 156 | 259 | 80 | 189 | 125 | 238 | 186 |
| Sunny days | 1 | 4 | 18 | 12 | 10 | 7 | 6 | 5 | 5 | 8 | 4 | 3 |
| Rainy days | 11 | 10 | 11 | 18 | 21 | 23 | 25 | 26 | 25 | 23 | 24 | 20 |
| Snow days | 19 | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
The best time to visit Shimoinnai during the most sunny months:
The largest precipitation sum in Shimoinnai is at