Average annual temperature is 14.2 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 162 days
Number of rainy days: 190 days
Number of snow days: 13 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) | 15.1 | 11.9 | 21.3 | 23.1 | 26.9 | 33.3 | 31.0 | 33.4 | 30.1 | 23.4 | 25.1 | 18.5 |
| Average daytime temperature (°C) | 5.5 | 7.0 | 14.2 | 17.5 | 21.3 | 25.8 | 27.8 | 30.1 | 26.8 | 20.7 | 13.4 | 7.8 |
| Average temperature (°C) | 1.5 | 2.4 | 8.7 | 12.8 | 17.3 | 21.9 | 25.1 | 26.4 | 23.0 | 16.1 | 9.6 | 4.5 |
| Average night temperature (°C) | -2.9 | -1.1 | 4.3 | 9.1 | 13.8 | 19.1 | 22.9 | 23.4 | 19.9 | 12.0 | 5.3 | 0.8 |
| Absolute minimum temperature (°C) | -12.1 | -5.4 | -3.1 | 3.7 | 6.5 | 15.2 | 20.7 | 19.1 | 15.4 | 8.3 | -2.5 | -8.8 |
| 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 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.7 | 7.4 | 8.5 | 7.6 | 7.6 | 8.9 | 6.7 | 10.0 | 8.0 | 8.2 | 6.6 | 5.0 |
| Precipitation (mm) | 35 | 29 | 62 | 103 | 192 | 174 | 487 | 213 | 148 | 24 | 82 | 72 |
| Sunny days | 17 | 21 | 23 | 14 | 13 | 15 | 1 | 3 | 7 | 21 | 17 | 10 |
| Rainy days | 9 | 6 | 8 | 16 | 18 | 15 | 30 | 28 | 23 | 10 | 13 | 14 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
The best time to visit Ansan during the most sunny months:
The largest precipitation sum in Ansan is at