Average annual temperature is 14.8 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -12.4 °C
Number of sunny days: 201 days
Number of rainy days: 161 days
Number of snow days: 3 days
Look at detailed online map of Umi
* Weather data for Umi 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) | 16.5 | 16.5 | 25.0 | 28.4 | 34.3 | 36.8 | 34.7 | 37.1 | 31.0 | 24.2 | 27.0 | 19.6 |
| Average daytime temperature (°C) | 7.1 | 10.5 | 18.8 | 20.3 | 24.5 | 29.9 | 30.3 | 31.6 | 27.5 | 21.8 | 14.5 | 8.7 |
| Average temperature (°C) | 1.1 | 4.3 | 11.3 | 14.1 | 18.8 | 23.9 | 26.1 | 27.2 | 23.1 | 15.4 | 8.5 | 3.6 |
| Average night temperature (°C) | -3.2 | -0.7 | 5.3 | 8.3 | 14.2 | 19.3 | 23.1 | 23.8 | 19.5 | 10.1 | 3.8 | -0.5 |
| Absolute minimum temperature (°C) | -12.4 | -4.7 | -3.6 | 1.4 | 7.2 | 15.0 | 18.8 | 21.6 | 14.5 | 5.2 | -4.1 | -8.9 |
| 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) | 10.1 | 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) | 7.8 | 7.4 | 8.9 | 8.1 | 8.0 | 9.3 | 7.3 | 9.4 | 7.5 | 8.8 | 7.8 | 6.9 |
| Precipitation (mm) | 29 | 23 | 45 | 78 | 140 | 148 | 352 | 343 | 197 | 7 | 49 | 70 |
| Sunny days | 25 | 18 | 23 | 16 | 18 | 12 | 4 | 7 | 10 | 25 | 21 | 22 |
| Rainy days | 4 | 10 | 8 | 14 | 13 | 18 | 27 | 24 | 20 | 6 | 9 | 8 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Umi is at