Average annual temperature is 12.0 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -18.8 °C
Number of sunny days: 185 days
Number of rainy days: 165 days
Number of snow days: 15 days
Look at detailed online map of Siudong
* Weather data for Siudong 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) | 11.1 | 10.4 | 22.3 | 24.5 | 28.1 | 34.4 | 32.0 | 33.2 | 30.0 | 21.5 | 22.5 | 15.1 |
| Average daytime temperature (°C) | 1.2 | 5.7 | 14.1 | 17.2 | 22.7 | 26.6 | 28.7 | 28.9 | 25.8 | 18.4 | 8.7 | 3.3 |
| Average temperature (°C) | -3.5 | 0.1 | 7.4 | 11.4 | 17.2 | 21.7 | 25.1 | 25.2 | 21.5 | 13.2 | 4.1 | -0.7 |
| Average night temperature (°C) | -7.8 | -3.9 | 1.7 | 6.2 | 12.1 | 17.2 | 21.9 | 21.8 | 17.5 | 8.4 | -0.1 | -4.6 |
| Absolute minimum temperature (°C) | -18.8 | -7.2 | -4.7 | -1.2 | 4.5 | 12.9 | 17.4 | 16.2 | 10.7 | 1.8 | -8.4 | -16.1 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 7.2 | 8.4 | 9.1 | 7.3 | 9.4 | 9.4 | 7.8 | 8.1 | 7.5 | 8.4 | 6.8 | 6.1 |
| Precipitation (mm) | 48 | 2 | 21 | 116 | 139 | 209 | 366 | 338 | 118 | 26 | 95 | 72 |
| Sunny days | 19 | 24 | 24 | 12 | 19 | 8 | 8 | 8 | 10 | 19 | 15 | 19 |
| Rainy days | 3 | 3 | 7 | 18 | 12 | 22 | 23 | 23 | 20 | 12 | 13 | 9 |
| Snow days | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The largest precipitation sum in Siudong is at