Average annual temperature is 10.1 °C
Absolute maximum temperature: 31.9 °C
Absolute minimum temperature: -20.2 °C
Number of sunny days: 176 days
Number of rainy days: 167 days
Number of snow days: 22 days
Look at detailed online map of Najŏn
* Weather data for Najŏn 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) | 11.3 | 11.2 | 20.6 | 22.9 | 27.4 | 28.8 | 31.0 | 31.9 | 27.3 | 19.8 | 21.0 | 13.8 |
| Average daytime temperature (°C) | 0.3 | 4.7 | 12.5 | 14.8 | 20.1 | 24.4 | 27.4 | 27.5 | 23.4 | 16.5 | 8.2 | 1.8 |
| Average temperature (°C) | -4.5 | -0.7 | 5.7 | 9.2 | 14.9 | 19.4 | 23.1 | 23.2 | 19.0 | 10.7 | 3.0 | -2.4 |
| Average night temperature (°C) | -9.0 | -4.5 | 0.1 | 4.1 | 9.5 | 14.5 | 19.7 | 19.8 | 15.6 | 5.6 | -1.2 | -5.9 |
| Absolute minimum temperature (°C) | -20.2 | -7.9 | -7.5 | -3.4 | 1.8 | 10.0 | 16.2 | 13.1 | 8.7 | -0.3 | -10.6 | -17.6 |
| 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 | 14.0 | 12.0 | 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) | 7.1 | 7.8 | 9.1 | 8.0 | 8.9 | 9.8 | 7.6 | 8.5 | 7.2 | 8.2 | 6.8 | 5.9 |
| Precipitation (mm) | 42 | 6 | 23 | 94 | 114 | 200 | 421 | 279 | 210 | 20 | 76 | 90 |
| Sunny days | 20 | 20 | 22 | 16 | 13 | 9 | 7 | 9 | 7 | 18 | 17 | 18 |
| Rainy days | 3 | 1 | 9 | 14 | 18 | 21 | 24 | 22 | 23 | 12 | 11 | 9 |
| Snow days | 8 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The largest precipitation sum in Najŏn is at