Average annual temperature is 17.0 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -3.8 °C
Number of sunny days: 146 days
Number of rainy days: 218 days
Number of snow days: 1 day
Look at detailed online map of Iwanade
* Weather data for Iwanade 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) | 16.2 | 19.7 | 24.3 | 27.1 | 31.6 | 32.1 | 36.9 | 35.5 | 34.4 | 32.3 | 26.2 | 23.8 |
| Average daytime temperature (°C) | 10.0 | 11.5 | 17.0 | 20.4 | 22.5 | 26.6 | 32.5 | 32.7 | 30.4 | 23.1 | 19.5 | 14.2 |
| Average temperature (°C) | 5.1 | 6.9 | 12.2 | 15.8 | 18.2 | 22.4 | 27.3 | 27.9 | 26.1 | 18.1 | 14.5 | 9.0 |
| Average night temperature (°C) | 1.2 | 3.0 | 8.4 | 12.3 | 14.7 | 19.2 | 23.5 | 24.7 | 23.2 | 13.9 | 10.9 | 4.7 |
| Absolute minimum temperature (°C) | -3.8 | -3.2 | 1.1 | 5.6 | 9.7 | 15.6 | 20.2 | 21.7 | 18.5 | 9.2 | 4.9 | -1.9 |
| 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 | 14.3 | 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) | 6.5 | 6.6 | 7.4 | 8.8 | 8.3 | 6.9 | 10.8 | 11.5 | 8.8 | 8.6 | 7.2 | 7.5 |
| Precipitation (mm) | 50 | 76 | 149 | 129 | 135 | 267 | 50 | 100 | 222 | 127 | 76 | 44 |
| Sunny days | 18 | 13 | 10 | 12 | 11 | 8 | 17 | 3 | 4 | 14 | 16 | 20 |
| Rainy days | 13 | 14 | 21 | 18 | 20 | 22 | 14 | 28 | 26 | 17 | 14 | 11 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Iwanade during the most sunny months:
The largest precipitation sum in Iwanade is at