Average annual temperature is 15.7 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 161 days
Number of rainy days: 203 days
Number of snow days: 1 day
Look at detailed online map of Shimamyojin
* Weather data for Shimamyojin 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) | 16.7 | 14.4 | 20.8 | 24.2 | 27.5 | 29.3 | 33.1 | 34.6 | 34.1 | 28.4 | 25.2 | 20.7 |
| Average daytime temperature (°C) | 9.2 | 10.1 | 15.7 | 18.5 | 22.1 | 25.3 | 29.6 | 31.4 | 29.4 | 22.7 | 17.4 | 11.6 |
| Average temperature (°C) | 4.4 | 5.5 | 10.3 | 13.7 | 17.8 | 21.5 | 25.8 | 27.4 | 25.2 | 17.0 | 12.4 | 6.8 |
| Average night temperature (°C) | 0.5 | 1.5 | 5.5 | 9.6 | 14.3 | 18.3 | 22.9 | 24.2 | 22.0 | 12.5 | 8.2 | 2.6 |
| Absolute minimum temperature (°C) | -5.2 | -2.6 | -2.8 | 3.5 | 6.6 | 12.7 | 18.0 | 22.3 | 18.6 | 7.5 | 1.4 | -5.4 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 6.8 | 8.4 | 8.1 | 9.0 | 7.6 | 9.3 | 10.0 | 9.5 | 8.5 | 8.3 | 7.0 |
| Precipitation (mm) | 67 | 66 | 116 | 259 | 252 | 274 | 166 | 167 | 86 | 24 | 40 | 67 |
| Sunny days | 18 | 15 | 16 | 17 | 13 | 9 | 5 | 6 | 5 | 22 | 17 | 18 |
| Rainy days | 12 | 13 | 15 | 13 | 18 | 21 | 26 | 25 | 25 | 9 | 13 | 13 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Shimamyojin is at