Average annual temperature is 11.8 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -16.3 °C
Number of sunny days: 163 days
Number of rainy days: 185 days
Number of snow days: 17 days
Look at detailed online map of San-ch’on
* Weather data for San-ch’on 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) | 14.5 | 11.6 | 20.3 | 23.4 | 28.3 | 30.3 | 31.4 | 32.2 | 28.3 | 20.4 | 22.0 | 16.5 |
| Average daytime temperature (°C) | 2.2 | 5.9 | 13.7 | 16.2 | 20.9 | 25.5 | 27.3 | 28.6 | 24.7 | 17.8 | 9.9 | 4.6 |
| Average temperature (°C) | -2.0 | 0.7 | 7.6 | 10.7 | 16.1 | 20.4 | 23.7 | 24.4 | 20.5 | 12.6 | 5.4 | 0.9 |
| Average night temperature (°C) | -5.8 | -3.0 | 2.9 | 5.8 | 11.8 | 16.5 | 20.8 | 21.0 | 17.1 | 8.1 | 1.3 | -2.5 |
| Absolute minimum temperature (°C) | -16.3 | -8.1 | -5.3 | -1.6 | 3.2 | 13.2 | 18.3 | 17.0 | 11.4 | 4.0 | -8.3 | -13.3 |
| 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 | 14.5 | 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) | 6.9 | 7.4 | 9.0 | 7.6 | 8.1 | 9.3 | 6.9 | 9.2 | 7.4 | 8.8 | 7.2 | 5.8 |
| Precipitation (mm) | 39 | 15 | 48 | 86 | 125 | 161 | 443 | 294 | 142 | 13 | 100 | 118 |
| Sunny days | 17 | 18 | 21 | 13 | 16 | 9 | 3 | 5 | 9 | 23 | 15 | 14 |
| Rainy days | 6 | 7 | 10 | 17 | 15 | 21 | 28 | 26 | 21 | 8 | 15 | 11 |
| Snow days | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
The largest precipitation sum in San-ch’on is at