Average annual temperature is 12.8 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -17.0 °C
Number of sunny days: 190 days
Number of rainy days: 170 days
Number of snow days: 5 days
Look at detailed online map of Haenam
* Weather data for Haenam 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) | 13.8 | 12.5 | 22.4 | 25.9 | 31.7 | 32.2 | 33.8 | 34.1 | 28.7 | 21.0 | 23.4 | 16.1 |
| Average daytime temperature (°C) | 3.0 | 7.0 | 15.7 | 17.6 | 22.7 | 27.5 | 29.1 | 29.6 | 25.1 | 18.6 | 10.9 | 5.0 |
| Average temperature (°C) | -1.6 | 1.5 | 9.0 | 11.9 | 17.3 | 21.9 | 24.8 | 25.5 | 21.3 | 13.5 | 6.0 | 1.0 |
| Average night temperature (°C) | -5.5 | -2.7 | 2.9 | 6.7 | 12.2 | 17.3 | 21.5 | 22.3 | 18.0 | 9.2 | 1.1 | -2.5 |
| Absolute minimum temperature (°C) | -17.0 | -7.5 | -4.5 | 0.3 | 3.9 | 13.3 | 17.8 | 18.7 | 13.3 | 4.0 | -8.0 | -13.1 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 7.4 | 9.3 | 8.3 | 8.8 | 9.7 | 8.1 | 9.6 | 7.4 | 8.6 | 7.9 | 6.8 |
| Precipitation (mm) | 28 | 12 | 63 | 55 | 171 | 234 | 326 | 221 | 191 | 9 | 45 | 87 |
| Sunny days | 24 | 19 | 23 | 16 | 19 | 10 | 3 | 5 | 7 | 23 | 18 | 23 |
| Rainy days | 4 | 7 | 8 | 14 | 12 | 20 | 28 | 26 | 23 | 8 | 12 | 8 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haenam is at