Average annual temperature is 15.9 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: -6.5 °C
Number of sunny days: 203 days
Number of rainy days: 160 days
Number of snow days: 2 days
Look at detailed online map of Seizan-ri
* Weather data for Seizan-ri South Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.5 | 11.8 | 16.6 | 17.1 | 19.9 | 24.1 | 27.9 | 29.9 | 28.4 | 24.5 | 21.9 | 16.7 |
| Average daytime temperature (°C) | 7.5 | 9.3 | 12.7 | 15.2 | 17.7 | 21.7 | 24.7 | 28.1 | 26.4 | 20.9 | 14.3 | 9.7 |
| Average temperature (°C) | 5.3 | 7.3 | 11.1 | 13.7 | 16.7 | 20.8 | 23.9 | 27.3 | 25.0 | 19.1 | 12.4 | 7.7 |
| Average night temperature (°C) | 2.5 | 4.9 | 8.8 | 12.0 | 15.7 | 19.8 | 22.9 | 26.2 | 23.6 | 17.0 | 9.5 | 5.3 |
| Absolute minimum temperature (°C) | -6.5 | 0.7 | 2.9 | 7.0 | 12.2 | 16.9 | 21.0 | 24.7 | 19.0 | 12.8 | 2.2 | -3.4 |
| 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) | 7.8 | 7.4 | 8.6 | 8.1 | 8.2 | 8.9 | 7.9 | 10.2 | 8.0 | 8.7 | 8.1 | 7.3 |
| Precipitation (mm) | 60 | 62 | 55 | 114 | 254 | 311 | 368 | 318 | 265 | 19 | 60 | 83 |
| Sunny days | 24 | 16 | 20 | 17 | 15 | 15 | 7 | 12 | 12 | 23 | 21 | 21 |
| Rainy days | 6 | 12 | 11 | 13 | 16 | 15 | 24 | 19 | 18 | 8 | 9 | 9 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Seizan-ri is at