Average annual temperature is 13.7 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 197 days
Number of rainy days: 166 days
Number of snow days: 2 days
Look at detailed online map of Hai-myeon
* Weather data for Hai-myeon 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) | 11.9 | 10.6 | 20.3 | 17.2 | 20.5 | 25.0 | 30.8 | 34.0 | 29.6 | 22.9 | 24.0 | 17.3 |
| Average daytime temperature (°C) | 5.1 | 7.2 | 11.4 | 14.4 | 17.2 | 21.6 | 26.1 | 28.8 | 25.7 | 20.4 | 13.3 | 7.9 |
| Average temperature (°C) | 2.3 | 4.4 | 8.9 | 12.2 | 15.7 | 20.0 | 23.5 | 25.8 | 22.4 | 16.0 | 9.1 | 4.1 |
| Average night temperature (°C) | -1.3 | 1.1 | 6.1 | 9.7 | 14.3 | 18.6 | 21.5 | 23.3 | 19.6 | 12.1 | 5.3 | 0.6 |
| Absolute minimum temperature (°C) | -10.4 | -3.2 | -0.1 | 4.0 | 8.7 | 15.1 | 18.3 | 21.3 | 15.5 | 7.7 | -3.1 | -8.4 |
| 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 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.7 | 7.5 | 8.7 | 7.8 | 7.8 | 8.6 | 6.9 | 9.9 | 7.8 | 8.8 | 8.2 | 7.3 |
| Precipitation (mm) | 49 | 41 | 67 | 147 | 221 | 235 | 399 | 307 | 248 | 10 | 42 | 77 |
| Sunny days | 26 | 20 | 21 | 14 | 15 | 12 | 6 | 6 | 9 | 24 | 23 | 21 |
| Rainy days | 5 | 8 | 10 | 16 | 16 | 18 | 25 | 25 | 21 | 7 | 7 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Hai-myeon is at