Average annual temperature is 14.7 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -13.8 °C
Number of sunny days: 197 days
Number of rainy days: 167 days
Number of snow days: 1 day
Look at detailed online map of Nam-san
* Weather data for Nam-san 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) | 16.5 | 16.2 | 26.0 | 29.3 | 34.0 | 35.9 | 36.1 | 37.1 | 30.3 | 24.3 | 26.7 | 20.0 |
| Average daytime temperature (°C) | 6.2 | 9.8 | 17.6 | 19.7 | 23.7 | 28.4 | 30.5 | 30.7 | 26.3 | 21.4 | 14.1 | 8.2 |
| Average temperature (°C) | 1.0 | 4.0 | 11.0 | 14.3 | 18.5 | 23.3 | 26.3 | 26.9 | 22.9 | 15.5 | 8.7 | 3.5 |
| Average night temperature (°C) | -3.2 | -0.7 | 5.3 | 9.3 | 13.9 | 19.2 | 23.2 | 23.6 | 19.9 | 10.7 | 3.9 | -0.5 |
| Absolute minimum temperature (°C) | -13.8 | -5.2 | -1.9 | 3.2 | 6.9 | 14.4 | 18.9 | 20.6 | 13.8 | 5.4 | -5.2 | -10.3 |
| 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) | 7.9 | 7.4 | 9.1 | 8.7 | 8.4 | 9.8 | 8.7 | 9.1 | 7.3 | 8.8 | 7.9 | 7.2 |
| Precipitation (mm) | 32 | 28 | 66 | 52 | 157 | 151 | 283 | 224 | 250 | 3 | 33 | 99 |
| Sunny days | 26 | 16 | 21 | 16 | 15 | 14 | 4 | 6 | 7 | 23 | 24 | 25 |
| Rainy days | 4 | 12 | 10 | 14 | 16 | 16 | 27 | 25 | 23 | 8 | 6 | 6 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nam-san is at