Average annual temperature is 17.5 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -1.9 °C
Number of sunny days: 152 days
Number of rainy days: 213 days
Look at detailed online map of Iwaito
* Weather data for Iwaito 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) | 16.4 | 18.5 | 23.1 | 22.7 | 27.2 | 28.1 | 32.2 | 31.7 | 31.5 | 29.6 | 24.6 | 21.4 |
| Average daytime temperature (°C) | 10.0 | 11.5 | 16.2 | 18.8 | 21.3 | 25.0 | 29.3 | 30.6 | 28.7 | 22.7 | 18.7 | 14.0 |
| Average temperature (°C) | 6.9 | 8.2 | 12.9 | 15.8 | 18.4 | 22.1 | 26.1 | 27.3 | 25.8 | 19.1 | 15.6 | 10.8 |
| Average night temperature (°C) | 3.9 | 4.8 | 9.9 | 13.2 | 15.9 | 19.8 | 23.5 | 25.1 | 23.7 | 16.0 | 12.9 | 7.6 |
| Absolute minimum temperature (°C) | -1.9 | -0.6 | 3.7 | 5.8 | 10.6 | 16.2 | 20.8 | 23.4 | 19.2 | 12.8 | 6.3 | 2.0 |
| 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 | 14.2 | 13.4 | 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) | 6.5 | 7.5 | 7.7 | 8.8 | 8.6 | 7.3 | 11.2 | 11.3 | 9.3 | 8.7 | 7.1 | 7.5 |
| Precipitation (mm) | 71 | 107 | 176 | 189 | 175 | 249 | 47 | 137 | 202 | 173 | 92 | 65 |
| Sunny days | 17 | 14 | 9 | 15 | 11 | 7 | 17 | 5 | 6 | 16 | 15 | 20 |
| Rainy days | 14 | 14 | 22 | 15 | 20 | 23 | 14 | 26 | 24 | 15 | 15 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Iwaito during the most sunny months:
The largest precipitation sum in Iwaito is at