Average annual temperature is 8.6 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -21.5 °C
Number of sunny days: 151 days
Number of rainy days: 181 days
Number of snow days: 33 days
Look at detailed online map of Seo
* Weather data for Seo 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) | 6.5 | 8.3 | 16.3 | 18.0 | 24.7 | 28.9 | 33.4 | 33.4 | 29.7 | 23.5 | 18.8 | 12.0 |
| Average daytime temperature (°C) | -3.9 | -1.9 | 7.3 | 12.6 | 17.7 | 22.0 | 26.9 | 27.3 | 24.1 | 16.0 | 9.5 | 0.8 |
| Average temperature (°C) | -8.7 | -6.1 | 2.0 | 7.7 | 12.0 | 16.9 | 22.0 | 23.5 | 19.7 | 11.3 | 5.1 | -3.6 |
| Average night temperature (°C) | -13.5 | -10.5 | -3.0 | 3.6 | 7.2 | 12.8 | 18.3 | 20.6 | 16.2 | 7.5 | 0.9 | -7.3 |
| Absolute minimum temperature (°C) | -21.5 | -19.8 | -9.6 | -4.4 | 1.2 | 6.1 | 13.4 | 15.2 | 10.9 | 1.6 | -9.6 | -14.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.5 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 7.7 | 8.6 | 8.4 | 9.6 | 9.1 | 9.5 | 7.4 | 7.3 | 8.2 | 6.7 | 6.3 |
| Precipitation (mm) | 28 | 48 | 80 | 158 | 58 | 79 | 88 | 109 | 160 | 102 | 139 | 44 |
| Sunny days | 20 | 11 | 19 | 11 | 11 | 10 | 13 | 4 | 8 | 12 | 14 | 18 |
| Rainy days | 3 | 3 | 9 | 19 | 20 | 20 | 18 | 27 | 22 | 19 | 14 | 7 |
| Snow days | 8 | 14 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
Months with the longest average daylight duration in Seo:
The largest precipitation sum in Seo is at