Average annual temperature is 16.4 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 169 days
Number of rainy days: 195 days
Number of snow days: 1 day
Look at detailed online map of Seto
* Weather data for Seto 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 | 17.7 | 23.4 | 25.6 | 32.7 | 31.3 | 37.7 | 37.0 | 35.7 | 27.7 | 24.9 | 20.0 |
| Average daytime temperature (°C) | 8.8 | 10.8 | 16.8 | 20.1 | 22.9 | 26.7 | 32.9 | 33.3 | 30.3 | 22.4 | 17.9 | 13.0 |
| Average temperature (°C) | 3.9 | 5.6 | 11.7 | 15.2 | 17.9 | 22.3 | 27.8 | 28.7 | 26.0 | 17.4 | 12.8 | 7.5 |
| Average night temperature (°C) | 0.0 | 0.9 | 7.3 | 10.9 | 13.8 | 18.9 | 23.7 | 25.3 | 22.9 | 13.2 | 8.6 | 3.2 |
| Absolute minimum temperature (°C) | -5.4 | -3.6 | 0.8 | 3.2 | 6.8 | 13.7 | 21.0 | 23.9 | 16.5 | 8.3 | 3.8 | -2.3 |
| 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) | 7.3 | 7.8 | 7.7 | 8.7 | 8.8 | 7.6 | 10.7 | 11.1 | 8.9 | 8.4 | 7.1 | 7.6 |
| Precipitation (mm) | 24 | 38 | 114 | 99 | 164 | 301 | 45 | 88 | 226 | 131 | 64 | 34 |
| Sunny days | 19 | 15 | 17 | 17 | 13 | 7 | 16 | 7 | 6 | 16 | 16 | 20 |
| Rainy days | 11 | 13 | 14 | 13 | 18 | 23 | 15 | 24 | 24 | 15 | 14 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Seto during the most sunny months:
The largest precipitation sum in Seto is at