Average annual temperature is 12.1 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 169 days
Number of rainy days: 180 days
Number of snow days: 16 days
Look at detailed online map of Iwa-kubo
* Weather data for Iwa-kubo 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) | 13.7 | 11.9 | 20.2 | 24.4 | 27.6 | 28.9 | 32.1 | 32.1 | 31.2 | 23.3 | 22.2 | 16.3 |
| Average daytime temperature (°C) | 5.7 | 6.9 | 13.2 | 16.2 | 19.8 | 23.3 | 28.4 | 29.5 | 27.2 | 17.8 | 14.0 | 9.4 |
| Average temperature (°C) | 0.4 | 1.5 | 7.2 | 10.4 | 14.2 | 18.5 | 23.2 | 23.8 | 21.8 | 12.1 | 8.1 | 3.5 |
| Average night temperature (°C) | -3.1 | -2.4 | 2.1 | 5.1 | 9.6 | 14.5 | 18.8 | 19.3 | 17.6 | 7.6 | 3.7 | -0.4 |
| Absolute minimum temperature (°C) | -12.2 | -7.2 | -5.3 | -0.2 | 3.6 | 8.6 | 16.5 | 17.0 | 9.8 | 2.3 | -2.0 | -4.7 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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) | 7.6 | 7.6 | 8.9 | 9.0 | 9.1 | 8.2 | 10.1 | 10.9 | 9.2 | 8.8 | 7.8 | 7.4 |
| Precipitation (mm) | 33 | 75 | 132 | 176 | 218 | 386 | 84 | 59 | 103 | 77 | 114 | 93 |
| Sunny days | 19 | 16 | 17 | 14 | 15 | 9 | 12 | 6 | 7 | 20 | 16 | 18 |
| Rainy days | 5 | 8 | 14 | 16 | 16 | 21 | 19 | 25 | 23 | 11 | 13 | 9 |
| Snow days | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The best time to visit Iwa-kubo during the most sunny months:
The largest precipitation sum in Iwa-kubo is at