Average annual temperature is 11.6 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 87 days
Number of rainy days: 229 days
Number of snow days: 49 days
Look at detailed online map of Shimoiwasaki
* Weather data for Shimoiwasaki 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) | 8.8 | 9.8 | 20.0 | 22.9 | 28.1 | 30.3 | 33.8 | 37.4 | 31.2 | 22.5 | 22.1 | 13.6 |
| Average daytime temperature (°C) | 0.3 | 1.7 | 10.3 | 14.5 | 19.4 | 24.4 | 27.8 | 32.1 | 26.4 | 17.9 | 11.3 | 3.3 |
| Average temperature (°C) | -2.1 | -0.9 | 4.7 | 9.6 | 13.8 | 19.4 | 23.6 | 27.3 | 21.7 | 13.1 | 7.7 | 0.3 |
| Average night temperature (°C) | -4.7 | -3.4 | -0.1 | 5.7 | 9.1 | 15.7 | 20.1 | 23.7 | 18.2 | 9.1 | 4.5 | -2.9 |
| Absolute minimum temperature (°C) | -10.5 | -9.3 | -7.5 | -0.8 | 1.1 | 10.9 | 15.9 | 20.2 | 10.4 | 3.4 | -2.6 | -10.2 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 5.0 | 5.8 | 8.3 | 8.4 | 9.6 | 7.9 | 9.5 | 11.4 | 7.7 | 7.8 | 4.8 | 3.3 |
| Precipitation (mm) | 111 | 86 | 85 | 126 | 144 | 149 | 217 | 74 | 125 | 136 | 206 | 112 |
| Sunny days | 1 | 1 | 17 | 10 | 15 | 8 | 4 | 5 | 9 | 7 | 7 | 3 |
| Rainy days | 12 | 10 | 14 | 20 | 16 | 22 | 27 | 26 | 21 | 24 | 20 | 17 |
| Snow days | 18 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 11 |
The best time to visit Shimoiwasaki during the most sunny months:
The largest precipitation sum in Shimoiwasaki is at