Average annual temperature is 11.3 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -19.4 °C
Number of sunny days: 185 days
Number of rainy days: 169 days
Number of snow days: 11 days
Look at detailed online map of Samwŏnsu
* Weather data for Samwŏnsu 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) | 11.2 | 10.8 | 22.1 | 24.8 | 29.3 | 33.0 | 32.2 | 33.5 | 29.2 | 21.2 | 21.7 | 14.8 |
| Average daytime temperature (°C) | 1.0 | 5.7 | 14.0 | 16.8 | 22.6 | 26.2 | 28.7 | 29.1 | 25.2 | 17.6 | 8.8 | 2.9 |
| Average temperature (°C) | -3.6 | -0.3 | 6.9 | 10.7 | 16.5 | 20.9 | 24.3 | 24.7 | 20.6 | 11.8 | 3.7 | -1.2 |
| Average night temperature (°C) | -8.0 | -4.4 | 0.3 | 5.1 | 10.7 | 16.0 | 20.8 | 20.9 | 16.6 | 6.8 | -0.7 | -5.0 |
| Absolute minimum temperature (°C) | -19.4 | -8.0 | -5.7 | -2.0 | 1.5 | 11.8 | 16.3 | 14.4 | 9.5 | 1.4 | -9.4 | -15.8 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.0 | 8.0 | 8.9 | 7.3 | 9.0 | 9.5 | 8.0 | 8.3 | 7.3 | 7.8 | 6.9 | 5.9 |
| Precipitation (mm) | 64 | 1 | 25 | 126 | 132 | 229 | 372 | 323 | 164 | 23 | 94 | 95 |
| Sunny days | 19 | 25 | 22 | 13 | 19 | 10 | 6 | 5 | 8 | 19 | 18 | 21 |
| Rainy days | 5 | 1 | 9 | 17 | 12 | 20 | 25 | 26 | 22 | 12 | 10 | 10 |
| Snow days | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
The largest precipitation sum in Samwŏnsu is at