Average annual temperature is 13.3 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 171 days
Number of rainy days: 179 days
Number of snow days: 15 days
Look at detailed online map of Nanjŏn
* Weather data for Nanjŏn 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) | 16.0 | 13.3 | 22.3 | 25.3 | 30.3 | 32.3 | 33.0 | 33.5 | 30.1 | 22.1 | 23.8 | 17.5 |
| Average daytime temperature (°C) | 3.9 | 7.3 | 15.4 | 18.1 | 22.6 | 27.4 | 28.9 | 30.0 | 26.0 | 19.1 | 11.4 | 6.1 |
| Average temperature (°C) | -0.5 | 2.1 | 9.2 | 12.3 | 17.6 | 22.2 | 25.2 | 25.8 | 21.9 | 14.0 | 6.9 | 2.5 |
| Average night temperature (°C) | -4.3 | -1.6 | 4.1 | 7.3 | 13.1 | 18.0 | 22.3 | 22.4 | 18.5 | 10.0 | 2.8 | -0.9 |
| Absolute minimum temperature (°C) | -15.0 | -6.5 | -4.0 | -0.2 | 4.8 | 14.1 | 20.2 | 17.8 | 13.8 | 5.4 | -6.7 | -11.6 |
| 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) | 7.1 | 7.5 | 8.9 | 7.9 | 8.2 | 9.9 | 7.3 | 9.4 | 7.5 | 8.9 | 7.3 | 5.8 |
| Precipitation (mm) | 42 | 12 | 41 | 73 | 124 | 156 | 462 | 302 | 180 | 15 | 73 | 101 |
| Sunny days | 16 | 20 | 22 | 14 | 16 | 11 | 4 | 5 | 10 | 21 | 15 | 17 |
| Rainy days | 7 | 6 | 9 | 16 | 15 | 19 | 27 | 26 | 20 | 10 | 15 | 9 |
| Snow days | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Nanjŏn is at