Average annual temperature is 13.3 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -7.9 °C
Number of sunny days: 72 days
Number of rainy days: 259 days
Number of snow days: 34 days
Look at detailed online map of Shimaai
* Weather data for Shimaai 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) | 11.9 | 10.5 | 20.3 | 18.2 | 22.4 | 28.0 | 30.1 | 35.3 | 32.2 | 22.9 | 22.5 | 14.4 |
| Average daytime temperature (°C) | 3.1 | 3.1 | 10.4 | 13.1 | 17.5 | 22.6 | 26.1 | 32.5 | 26.9 | 18.6 | 12.9 | 6.2 |
| Average temperature (°C) | 0.9 | 1.2 | 6.7 | 10.1 | 14.1 | 19.8 | 23.8 | 28.7 | 23.5 | 15.3 | 10.3 | 4.0 |
| Average night temperature (°C) | -1.1 | -1.3 | 3.7 | 7.4 | 11.2 | 17.5 | 21.7 | 25.9 | 21.0 | 12.8 | 7.6 | 1.8 |
| Absolute minimum temperature (°C) | -7.9 | -6.3 | -1.4 | 0.2 | 4.5 | 12.3 | 16.1 | 23.0 | 14.7 | 8.4 | -0.2 | -3.8 |
| 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) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 5.1 | 5.9 | 8.2 | 8.6 | 9.0 | 8.1 | 8.9 | 11.9 | 7.8 | 7.6 | 5.0 | 3.7 |
| Precipitation (mm) | 114 | 79 | 105 | 151 | 191 | 221 | 359 | 67 | 270 | 234 | 282 | 158 |
| Sunny days | 0 | 3 | 13 | 9 | 9 | 5 | 6 | 14 | 3 | 6 | 3 | 1 |
| Rainy days | 15 | 13 | 18 | 21 | 22 | 25 | 25 | 17 | 27 | 25 | 27 | 24 |
| Snow days | 16 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
The best time to visit Shimaai during the most sunny months:
The largest precipitation sum in Shimaai is at