Average annual temperature is 9.8 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -14.9 °C
Number of sunny days: 83 days
Number of rainy days: 223 days
Number of snow days: 59 days
Look at detailed online map of Iwanazawa
* Weather data for Iwanazawa 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) | 8.4 | 7.3 | 17.2 | 21.2 | 25.6 | 27.8 | 30.1 | 32.3 | 30.3 | 20.9 | 21.0 | 12.3 |
| Average daytime temperature (°C) | -1.7 | -0.4 | 9.1 | 13.1 | 17.1 | 22.0 | 25.8 | 29.5 | 24.2 | 15.9 | 9.6 | 2.0 |
| Average temperature (°C) | -4.7 | -3.2 | 3.7 | 7.9 | 12.1 | 17.7 | 22.0 | 24.9 | 20.0 | 11.5 | 5.9 | -1.3 |
| Average night temperature (°C) | -7.4 | -5.9 | -0.3 | 4.3 | 8.3 | 14.6 | 19.1 | 21.8 | 17.2 | 8.5 | 2.9 | -4.2 |
| Absolute minimum temperature (°C) | -14.9 | -10.6 | -6.6 | -0.7 | 0.5 | 9.4 | 13.9 | 20.0 | 9.5 | 2.2 | -6.2 | -11.2 |
| 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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 5.8 | 6.0 | 8.4 | 8.9 | 9.1 | 8.6 | 9.6 | 10.7 | 8.1 | 8.4 | 5.7 | 4.8 |
| Precipitation (mm) | 71 | 65 | 80 | 98 | 142 | 181 | 203 | 163 | 182 | 101 | 160 | 110 |
| Sunny days | 4 | 3 | 18 | 9 | 9 | 7 | 3 | 6 | 3 | 9 | 6 | 6 |
| Rainy days | 6 | 5 | 11 | 21 | 22 | 23 | 28 | 25 | 27 | 22 | 20 | 13 |
| Snow days | 21 | 20 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 12 |
The best time to visit Iwanazawa during the most sunny months:
The largest precipitation sum in Iwanazawa is at