Average annual temperature is 15.9 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -4.4 °C
Number of sunny days: 107 days
Number of rainy days: 251 days
Number of snow days: 7 days
Look at detailed online map of Iinashichō
* Weather data for Iinashichō 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) | 16.1 | 15.7 | 21.5 | 25.7 | 28.9 | 31.6 | 35.4 | 36.3 | 32.5 | 25.0 | 25.9 | 20.8 |
| Average daytime temperature (°C) | 7.8 | 8.9 | 15.2 | 17.6 | 22.1 | 26.2 | 31.0 | 32.5 | 27.9 | 21.0 | 16.7 | 11.2 |
| Average temperature (°C) | 4.9 | 5.7 | 10.5 | 13.5 | 17.6 | 22.2 | 26.9 | 28.4 | 24.5 | 16.7 | 12.3 | 7.4 |
| Average night temperature (°C) | 2.6 | 3.0 | 6.4 | 10.0 | 14.0 | 19.0 | 23.6 | 25.4 | 21.8 | 13.2 | 8.5 | 4.5 |
| Absolute minimum temperature (°C) | -4.4 | -0.7 | -0.3 | 3.8 | 7.5 | 14.6 | 19.8 | 23.1 | 18.0 | 7.6 | 1.8 | -1.0 |
| 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 | 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) | 5.8 | 5.6 | 8.1 | 7.5 | 8.8 | 7.7 | 9.1 | 9.8 | 7.7 | 8.6 | 6.5 | 5.5 |
| Precipitation (mm) | 103 | 100 | 91 | 187 | 291 | 143 | 213 | 181 | 133 | 33 | 97 | 104 |
| Sunny days | 6 | 6 | 17 | 12 | 13 | 8 | 6 | 3 | 3 | 12 | 13 | 8 |
| Rainy days | 23 | 20 | 14 | 18 | 18 | 22 | 25 | 28 | 27 | 19 | 17 | 20 |
| Snow days | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The best time to visit Iinashichō during the most sunny months:
The largest precipitation sum in Iinashichō is at