Average annual temperature is 13.0 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 191 days
Number of rainy days: 161 days
Number of snow days: 13 days
Look at detailed online map of Heonteo
* Weather data for Heonteo 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) | 12.1 | 10.8 | 24.6 | 27.4 | 33.0 | 34.6 | 33.7 | 34.5 | 30.5 | 22.3 | 23.7 | 17.2 |
| Average daytime temperature (°C) | 2.3 | 6.8 | 15.8 | 19.5 | 25.1 | 28.1 | 29.7 | 30.4 | 26.2 | 18.9 | 10.3 | 4.8 |
| Average temperature (°C) | -2.6 | 1.0 | 8.6 | 13.1 | 18.9 | 22.8 | 25.6 | 26.1 | 22.1 | 13.4 | 5.3 | 0.6 |
| Average night temperature (°C) | -7.5 | -3.5 | 2.3 | 7.5 | 13.0 | 18.1 | 22.4 | 22.5 | 18.5 | 8.5 | 0.5 | -3.3 |
| Absolute minimum temperature (°C) | -17.2 | -7.3 | -4.3 | 0.6 | 4.1 | 13.7 | 20.4 | 16.8 | 12.3 | 3.1 | -7.7 | -13.8 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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 | 8.2 | 9.2 | 7.7 | 8.8 | 9.8 | 7.4 | 8.4 | 7.1 | 8.0 | 7.2 | 5.9 |
| Precipitation (mm) | 29 | 1 | 20 | 65 | 122 | 169 | 467 | 396 | 216 | 22 | 85 | 86 |
| Sunny days | 19 | 23 | 23 | 15 | 21 | 11 | 6 | 8 | 10 | 20 | 17 | 18 |
| Rainy days | 6 | 3 | 8 | 15 | 10 | 19 | 25 | 23 | 20 | 11 | 12 | 9 |
| Snow days | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Heonteo is at