Average annual temperature is 11.7 °C
Absolute maximum temperature: 30.7 °C
Absolute minimum temperature: -12.3 °C
Number of sunny days: 145 days
Number of rainy days: 200 days
Number of snow days: 20 days
Look at detailed online map of Shimoarai
* Weather data for Shimoarai 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) | 13.3 | 12.6 | 18.0 | 23.2 | 25.9 | 27.6 | 30.7 | 30.3 | 29.3 | 23.2 | 21.2 | 17.9 |
| Average daytime temperature (°C) | 5.0 | 6.1 | 12.3 | 16.0 | 18.8 | 22.5 | 27.8 | 28.0 | 25.8 | 17.0 | 13.6 | 9.0 |
| Average temperature (°C) | -0.1 | 0.9 | 6.5 | 10.1 | 13.6 | 18.3 | 23.0 | 23.5 | 21.0 | 11.6 | 7.9 | 3.1 |
| Average night temperature (°C) | -3.7 | -2.9 | 1.9 | 5.1 | 9.1 | 14.8 | 18.7 | 19.8 | 17.5 | 7.1 | 3.7 | -1.0 |
| Absolute minimum temperature (°C) | -12.3 | -8.4 | -6.8 | -1.3 | 2.6 | 9.2 | 15.7 | 17.1 | 9.2 | 1.7 | -3.1 | -6.9 |
| 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 | 9.8 |
| 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) | 7.6 | 7.7 | 8.6 | 9.3 | 9.1 | 8.0 | 9.9 | 10.9 | 9.1 | 8.9 | 8.1 | 7.7 |
| Precipitation (mm) | 30 | 61 | 103 | 109 | 205 | 317 | 94 | 86 | 155 | 91 | 63 | 34 |
| Sunny days | 16 | 15 | 13 | 15 | 15 | 6 | 4 | 5 | 3 | 15 | 19 | 19 |
| Rainy days | 6 | 7 | 18 | 15 | 16 | 24 | 27 | 26 | 27 | 16 | 10 | 8 |
| Snow days | 9 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Shimoarai is at