Average annual temperature is 20.9 °C
Absolute maximum temperature: 29.8 °C
Absolute minimum temperature: 13.9 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of San Marcos
* Weather data for San Marcos Colombia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 25.9 | 26.8 | 25.9 | 26.2 | 27.5 | 27.0 | 28.0 | 29.3 | 29.8 | 29.6 | 27.6 | 27.5 |
| Average daytime temperature (°C) | 22.8 | 25.2 | 23.3 | 23.9 | 25.6 | 25.6 | 25.8 | 27.2 | 27.8 | 26.2 | 24.9 | 24.9 |
| Average temperature (°C) | 19.0 | 20.4 | 19.6 | 20.2 | 21.3 | 21.0 | 21.0 | 21.8 | 22.4 | 21.7 | 20.9 | 21.0 |
| Average night temperature (°C) | 15.6 | 16.1 | 16.6 | 17.0 | 17.6 | 17.1 | 17.0 | 17.1 | 17.5 | 18.0 | 17.6 | 17.8 |
| Absolute minimum temperature (°C) | 14.4 | 13.9 | 14.4 | 15.6 | 15.9 | 15.7 | 15.2 | 14.2 | 15.6 | 16.8 | 16.3 | 16.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.9 | 10.7 | 9.0 | 9.2 | 9.8 | 10.8 | 10.7 | 10.5 | 10.8 | 9.5 | 9.4 | 9.1 |
| Precipitation (mm) | 185 | 105 | 401 | 195 | 200 | 42 | 132 | 73 | 88 | 228 | 226 | 230 |
| Sunny days | 3 | 11 | 0 | 0 | 4 | 5 | 3 | 5 | 3 | 4 | 1 | 0 |
| Rainy days | 28 | 17 | 31 | 30 | 27 | 25 | 28 | 26 | 27 | 27 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Marcos is at