Average annual temperature is 14.6 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -14.2 °C
Number of sunny days: 198 days
Number of rainy days: 164 days
Number of snow days: 3 days
Look at detailed online map of Sincheon
* Weather data for Sincheon 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) | 16.4 | 15.9 | 25.1 | 28.5 | 33.1 | 33.3 | 35.3 | 36.2 | 30.0 | 23.2 | 26.1 | 20.0 |
| Average daytime temperature (°C) | 5.8 | 9.5 | 17.6 | 19.7 | 23.4 | 28.2 | 30.4 | 30.6 | 26.1 | 21.0 | 13.8 | 7.9 |
| Average temperature (°C) | 0.9 | 4.0 | 10.9 | 14.0 | 18.2 | 23.0 | 26.2 | 26.7 | 22.8 | 15.4 | 8.5 | 3.4 |
| Average night temperature (°C) | -3.2 | -0.3 | 5.3 | 8.8 | 13.5 | 18.9 | 23.0 | 23.4 | 19.8 | 10.7 | 3.7 | -0.5 |
| Absolute minimum temperature (°C) | -14.2 | -5.1 | -1.8 | 2.8 | 6.5 | 14.7 | 18.7 | 21.1 | 14.2 | 6.5 | -5.3 | -10.3 |
| 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) | 7.7 | 7.3 | 9.1 | 8.5 | 8.2 | 9.3 | 8.1 | 8.7 | 6.9 | 8.8 | 7.8 | 7.0 |
| Precipitation (mm) | 34 | 29 | 56 | 53 | 147 | 181 | 252 | 209 | 250 | 9 | 55 | 111 |
| Sunny days | 24 | 18 | 20 | 16 | 17 | 13 | 2 | 7 | 9 | 23 | 24 | 25 |
| Rainy days | 5 | 9 | 11 | 14 | 14 | 17 | 29 | 24 | 21 | 8 | 6 | 6 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sincheon is at