Average annual temperature is 12.6 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -17.6 °C
Number of sunny days: 187 days
Number of rainy days: 167 days
Number of snow days: 11 days
Look at detailed online map of Suwon
* Weather data for Suwon 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) | 12.1 | 10.1 | 24.2 | 26.9 | 30.5 | 35.2 | 33.4 | 33.8 | 30.7 | 22.1 | 23.1 | 16.1 |
| Average daytime temperature (°C) | 2.3 | 6.1 | 14.7 | 18.2 | 23.8 | 26.8 | 28.9 | 29.6 | 26.0 | 18.9 | 9.9 | 4.6 |
| Average temperature (°C) | -2.5 | 0.7 | 7.7 | 12.2 | 17.8 | 21.8 | 25.2 | 25.7 | 22.1 | 14.0 | 5.3 | 0.5 |
| Average night temperature (°C) | -6.8 | -3.3 | 2.2 | 7.1 | 12.7 | 17.8 | 22.4 | 22.6 | 18.8 | 9.7 | 1.0 | -3.2 |
| Absolute minimum temperature (°C) | -17.6 | -6.7 | -4.4 | 0.3 | 4.1 | 13.3 | 20.6 | 18.5 | 12.8 | 4.4 | -7.6 | -14.4 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 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) | 7.1 | 8.2 | 9.5 | 7.9 | 8.6 | 9.4 | 7.5 | 8.4 | 7.4 | 8.1 | 7.0 | 6.0 |
| Precipitation (mm) | 33 | 1 | 15 | 99 | 167 | 230 | 418 | 281 | 207 | 45 | 145 | 86 |
| Sunny days | 19 | 26 | 25 | 14 | 21 | 11 | 7 | 5 | 8 | 19 | 16 | 16 |
| Rainy days | 7 | 2 | 6 | 16 | 10 | 19 | 24 | 26 | 22 | 12 | 13 | 10 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The largest precipitation sum in Suwon is at