Average annual temperature is 14.0 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 175 days
Number of rainy days: 183 days
Number of snow days: 7 days
Look at detailed online map of Naecheon
* Weather data for Naecheon 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) | 16.2 | 12.9 | 23.5 | 26.3 | 30.7 | 35.0 | 32.4 | 34.3 | 30.5 | 22.9 | 24.1 | 18.3 |
| Average daytime temperature (°C) | 5.1 | 8.5 | 16.8 | 18.9 | 23.5 | 28.6 | 29.1 | 30.6 | 27.0 | 20.1 | 12.8 | 7.7 |
| Average temperature (°C) | -0.1 | 2.5 | 9.5 | 13.0 | 18.1 | 22.8 | 25.6 | 26.4 | 22.8 | 14.8 | 8.0 | 3.5 |
| Average night temperature (°C) | -4.6 | -2.1 | 3.5 | 7.7 | 13.4 | 18.2 | 22.9 | 22.9 | 19.3 | 10.2 | 3.5 | -0.1 |
| Absolute minimum temperature (°C) | -13.3 | -5.3 | -4.4 | 0.7 | 6.5 | 13.2 | 19.8 | 18.4 | 14.1 | 5.2 | -4.0 | -10.6 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 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) | 7.2 | 7.2 | 8.8 | 7.3 | 7.6 | 9.0 | 6.3 | 9.6 | 7.6 | 8.3 | 7.2 | 5.8 |
| Precipitation (mm) | 43 | 24 | 44 | 95 | 151 | 180 | 407 | 345 | 206 | 12 | 99 | 88 |
| Sunny days | 21 | 22 | 24 | 12 | 13 | 14 | 2 | 3 | 9 | 21 | 21 | 13 |
| Rainy days | 7 | 6 | 7 | 18 | 18 | 16 | 29 | 28 | 21 | 10 | 9 | 14 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Naecheon is at