Average annual temperature is 12.4 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 63 days
Number of rainy days: 249 days
Number of snow days: 53 days
Look at detailed online map of Iwadate
* Weather data for Iwadate 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) | 10.9 | 8.7 | 20.3 | 19.2 | 22.4 | 27.0 | 29.1 | 34.0 | 31.2 | 22.1 | 22.7 | 13.5 |
| Average daytime temperature (°C) | 1.0 | 2.0 | 9.1 | 13.0 | 17.5 | 22.6 | 25.5 | 31.1 | 25.9 | 17.5 | 11.4 | 4.2 |
| Average temperature (°C) | -1.0 | 0.2 | 5.9 | 9.7 | 14.1 | 19.8 | 23.5 | 28.1 | 22.7 | 14.6 | 8.7 | 2.0 |
| Average night temperature (°C) | -2.7 | -1.5 | 3.3 | 7.1 | 11.1 | 17.5 | 21.5 | 25.7 | 20.0 | 12.2 | 6.1 | -0.1 |
| Absolute minimum temperature (°C) | -10.5 | -6.5 | -2.2 | 1.9 | 4.6 | 12.5 | 17.2 | 23.6 | 13.5 | 5.2 | -2.0 | -6.7 |
| 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 | 15.0 | 15.0 | 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 | 9.3 |
| 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) | 5.4 | 5.8 | 8.0 | 8.7 | 9.5 | 8.3 | 9.1 | 11.9 | 7.8 | 7.7 | 5.1 | 3.7 |
| Precipitation (mm) | 132 | 128 | 128 | 262 | 250 | 225 | 532 | 110 | 223 | 202 | 378 | 189 |
| Sunny days | 0 | 0 | 12 | 6 | 12 | 6 | 4 | 10 | 6 | 5 | 2 | 0 |
| Rainy days | 10 | 12 | 18 | 24 | 19 | 24 | 27 | 21 | 24 | 26 | 24 | 20 |
| Snow days | 21 | 16 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 11 |
The best time to visit Iwadate during the most sunny months:
The largest precipitation sum in Iwadate is at