Average annual temperature is 13.4 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 176 days
Number of rainy days: 176 days
Number of snow days: 13 days
Look at detailed online map of Ŭmdae
* Weather data for Ŭmdae 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) | 15.7 | 13.7 | 23.4 | 25.6 | 30.8 | 33.1 | 33.2 | 33.9 | 30.1 | 22.6 | 24.2 | 17.6 |
| Average daytime temperature (°C) | 4.0 | 7.5 | 16.1 | 18.6 | 23.2 | 28.1 | 29.1 | 30.2 | 26.1 | 19.5 | 11.6 | 6.3 |
| Average temperature (°C) | -0.6 | 1.9 | 9.4 | 12.6 | 17.8 | 22.6 | 25.3 | 25.9 | 21.9 | 13.7 | 6.7 | 2.1 |
| Average night temperature (°C) | -4.6 | -2.1 | 4.0 | 7.2 | 13.1 | 18.0 | 22.4 | 22.4 | 18.3 | 9.0 | 2.0 | -1.5 |
| Absolute minimum temperature (°C) | -15.3 | -6.6 | -4.6 | 0.3 | 4.3 | 14.1 | 20.0 | 17.5 | 12.3 | 4.4 | -7.0 | -11.9 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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 | 7.4 | 9.0 | 7.9 | 8.3 | 10.0 | 7.3 | 9.4 | 7.5 | 8.8 | 7.2 | 5.8 |
| Precipitation (mm) | 38 | 10 | 38 | 87 | 132 | 164 | 540 | 311 | 230 | 18 | 55 | 102 |
| Sunny days | 15 | 22 | 22 | 14 | 16 | 8 | 6 | 5 | 10 | 21 | 18 | 19 |
| Rainy days | 8 | 5 | 9 | 16 | 15 | 22 | 25 | 26 | 20 | 10 | 12 | 8 |
| Snow days | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Ŭmdae is at