Average annual temperature is 14.4 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -13.7 °C
Number of sunny days: 168 days
Number of rainy days: 185 days
Number of snow days: 12 days
Look at detailed online map of Ansan
* Weather data for Ansan 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 | 11.8 | 24.3 | 25.7 | 29.5 | 32.6 | 32.8 | 33.6 | 31.3 | 23.0 | 24.6 | 18.8 |
| Average daytime temperature (°C) | 4.8 | 6.9 | 14.7 | 18.4 | 23.0 | 26.5 | 29.1 | 30.3 | 26.9 | 20.4 | 13.1 | 7.7 |
| Average temperature (°C) | 1.1 | 2.5 | 8.8 | 13.2 | 18.2 | 22.2 | 25.8 | 26.7 | 23.1 | 16.1 | 9.4 | 4.5 |
| Average night temperature (°C) | -3.1 | -0.9 | 4.6 | 9.0 | 14.4 | 19.1 | 23.3 | 23.7 | 20.0 | 12.4 | 5.4 | 1.2 |
| Absolute minimum temperature (°C) | -13.7 | -4.4 | -2.7 | 3.6 | 7.7 | 15.3 | 20.5 | 18.8 | 15.8 | 9.0 | -2.6 | -9.9 |
| 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) | 6.8 | 7.4 | 8.9 | 7.5 | 7.8 | 9.3 | 6.8 | 9.7 | 7.9 | 8.4 | 6.6 | 4.8 |
| Precipitation (mm) | 39 | 11 | 25 | 83 | 137 | 154 | 543 | 192 | 188 | 18 | 92 | 128 |
| Sunny days | 17 | 21 | 24 | 15 | 15 | 16 | 1 | 6 | 10 | 21 | 12 | 10 |
| Rainy days | 8 | 7 | 7 | 15 | 16 | 14 | 30 | 25 | 20 | 10 | 17 | 16 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The best time to visit Ansan during the most sunny months:
The largest precipitation sum in Ansan is at