Average annual temperature is 16.5 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -6.3 °C
Number of sunny days: 109 days
Number of rainy days: 251 days
Number of snow days: 5 days
Look at detailed online map of Shimoyama
* Weather data for Shimoyama 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 | 17.4 | 25.6 | 26.7 | 30.6 | 32.0 | 35.7 | 33.9 | 33.3 | 29.0 | 25.1 | 21.7 |
| Average daytime temperature (°C) | 11.3 | 12.5 | 17.6 | 20.6 | 23.0 | 26.4 | 32.0 | 31.7 | 29.8 | 22.3 | 19.0 | 14.6 |
| Average temperature (°C) | 5.8 | 7.1 | 11.8 | 14.8 | 17.9 | 22.0 | 26.8 | 26.9 | 25.2 | 16.5 | 13.2 | 9.3 |
| Average night temperature (°C) | 1.6 | 2.6 | 7.2 | 10.0 | 13.4 | 18.7 | 22.9 | 23.6 | 21.7 | 11.5 | 9.0 | 5.3 |
| Absolute minimum temperature (°C) | -6.3 | -5.6 | 1.3 | 5.1 | 8.0 | 13.2 | 20.1 | 21.5 | 16.3 | 7.0 | 2.1 | 0.8 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 7.5 | 8.4 | 8.8 | 9.1 | 7.5 | 9.9 | 10.3 | 9.7 | 9.0 | 7.8 | 7.4 |
| Precipitation (mm) | 115 | 187 | 303 | 222 | 379 | 574 | 121 | 236 | 257 | 214 | 142 | 118 |
| Sunny days | 14 | 11 | 8 | 9 | 9 | 3 | 5 | 4 | 7 | 10 | 13 | 16 |
| Rainy days | 13 | 17 | 23 | 21 | 22 | 27 | 26 | 27 | 23 | 21 | 17 | 14 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Shimoyama is at