Average annual temperature is 16.0 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -7.0 °C
Number of sunny days: 128 days
Number of rainy days: 234 days
Number of snow days: 3 days
Look at detailed online map of Iwano
* Weather data for Iwano 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) | 19.6 | 19.4 | 25.1 | 26.5 | 29.0 | 29.9 | 33.5 | 34.4 | 31.7 | 27.0 | 27.5 | 20.6 |
| Average daytime temperature (°C) | 9.1 | 11.9 | 16.6 | 19.9 | 23.2 | 26.0 | 30.3 | 31.5 | 29.5 | 22.0 | 17.2 | 11.7 |
| Average temperature (°C) | 4.7 | 7.0 | 11.5 | 14.7 | 18.7 | 22.1 | 26.1 | 26.5 | 24.5 | 16.4 | 12.0 | 7.0 |
| Average night temperature (°C) | 0.9 | 3.0 | 7.1 | 9.9 | 14.4 | 18.8 | 22.6 | 22.8 | 20.5 | 11.9 | 7.8 | 3.3 |
| Absolute minimum temperature (°C) | -7.0 | -4.3 | -0.2 | 3.6 | 7.6 | 15.2 | 19.9 | 20.2 | 17.9 | 8.6 | 0.5 | -5.0 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.3 | 6.8 | 7.5 | 7.5 | 8.7 | 6.4 | 9.1 | 10.3 | 9.8 | 8.8 | 8.0 | 6.3 |
| Precipitation (mm) | 114 | 122 | 131 | 257 | 213 | 435 | 251 | 320 | 128 | 58 | 103 | 129 |
| Sunny days | 13 | 14 | 18 | 14 | 13 | 6 | 1 | 0 | 7 | 16 | 14 | 12 |
| Rainy days | 17 | 14 | 13 | 16 | 18 | 24 | 30 | 31 | 23 | 15 | 16 | 17 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Iwano during the most sunny months:
The largest precipitation sum in Iwano is at