Average annual temperature is 15.7 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -3.5 °C
Number of sunny days: 159 days
Number of rainy days: 204 days
Number of snow days: 2 days
Look at detailed online map of Ei
* Weather data for Ei 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) | 15.6 | 13.0 | 19.6 | 21.0 | 24.8 | 28.4 | 32.5 | 32.5 | 31.9 | 24.9 | 22.8 | 20.0 |
| Average daytime temperature (°C) | 7.7 | 8.1 | 14.3 | 17.1 | 20.8 | 23.7 | 28.7 | 30.1 | 28.2 | 20.7 | 15.7 | 10.6 |
| Average temperature (°C) | 5.1 | 5.0 | 10.1 | 13.3 | 17.1 | 20.6 | 25.4 | 26.8 | 25.0 | 17.8 | 13.1 | 8.3 |
| Average night temperature (°C) | 2.4 | 2.1 | 6.4 | 10.0 | 14.1 | 18.1 | 22.8 | 24.3 | 22.8 | 15.4 | 10.7 | 6.1 |
| Absolute minimum temperature (°C) | -3.5 | -1.2 | 1.5 | 5.5 | 9.7 | 13.2 | 20.2 | 22.2 | 20.5 | 11.7 | 4.6 | 0.9 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 6.9 | 8.8 | 8.1 | 9.4 | 7.0 | 10.3 | 10.1 | 10.0 | 8.6 | 7.4 | 7.2 |
| Precipitation (mm) | 48 | 47 | 94 | 153 | 205 | 334 | 68 | 165 | 54 | 36 | 133 | 33 |
| Sunny days | 13 | 13 | 19 | 15 | 16 | 11 | 11 | 4 | 12 | 16 | 16 | 13 |
| Rainy days | 17 | 15 | 12 | 15 | 15 | 19 | 20 | 27 | 18 | 15 | 14 | 17 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Ei is at