Average annual temperature is 13.1 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 157 days
Number of rainy days: 191 days
Number of snow days: 17 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) | 14.6 | 11.8 | 21.8 | 25.0 | 29.2 | 32.3 | 31.8 | 33.0 | 29.7 | 21.6 | 23.2 | 17.5 |
| Average daytime temperature (°C) | 3.3 | 6.6 | 14.6 | 17.3 | 21.9 | 26.2 | 28.1 | 29.3 | 25.8 | 18.9 | 11.2 | 5.9 |
| Average temperature (°C) | -0.7 | 1.5 | 8.5 | 12.0 | 17.2 | 21.1 | 24.6 | 25.3 | 21.9 | 14.7 | 7.2 | 2.7 |
| Average night temperature (°C) | -4.7 | -1.8 | 4.2 | 7.9 | 13.5 | 17.6 | 22.1 | 22.2 | 18.9 | 11.1 | 3.4 | -0.3 |
| Absolute minimum temperature (°C) | -15.4 | -6.7 | -2.9 | 1.7 | 6.8 | 13.1 | 18.6 | 17.4 | 13.8 | 6.1 | -5.5 | -11.7 |
| 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) | 7.2 | 7.2 | 8.8 | 7.3 | 7.7 | 8.9 | 6.3 | 9.6 | 7.7 | 8.5 | 6.9 | 5.4 |
| Precipitation (mm) | 41 | 16 | 42 | 100 | 158 | 170 | 471 | 275 | 187 | 14 | 103 | 106 |
| Sunny days | 19 | 20 | 23 | 11 | 13 | 12 | 1 | 2 | 9 | 22 | 13 | 12 |
| Rainy days | 6 | 6 | 8 | 19 | 18 | 18 | 30 | 29 | 21 | 9 | 15 | 12 |
| Snow days | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 7 |
The best time to visit Ansan during the most sunny months:
The largest precipitation sum in Ansan is at