Average annual temperature is 23.8 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 11.6 °C
Number of sunny days: 352 days
Number of rainy days: 13 days
Look at detailed online map of Isla San Marcos
* Weather data for Isla San Marcos Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 22.6 | 19.8 | 24.2 | 27.6 | 27.5 | 32.5 | 33.6 | 34.2 | 33.2 | 31.5 | 27.9 | 23.0 |
| Average daytime temperature (°C) | 18.4 | 17.7 | 20.3 | 23.2 | 25.3 | 29.3 | 31.6 | 32.2 | 31.7 | 29.1 | 25.2 | 21.2 |
| Average temperature (°C) | 16.7 | 15.9 | 18.3 | 20.7 | 23.1 | 27.2 | 30.3 | 30.7 | 30.3 | 27.4 | 23.8 | 20.2 |
| Average night temperature (°C) | 15.3 | 14.7 | 16.7 | 18.8 | 21.0 | 25.2 | 29.2 | 29.6 | 28.9 | 25.7 | 22.3 | 19.1 |
| Absolute minimum temperature (°C) | 11.6 | 12.2 | 13.3 | 15.5 | 16.7 | 21.1 | 27.2 | 25.2 | 25.7 | 20.7 | 17.5 | 16.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.8 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.3 | 9.5 | 10.5 | 11.9 | 12.3 | 12.4 | 12.7 | 11.7 | 11.3 | 10.4 | 8.9 | 9.0 |
| Precipitation (mm) | 0 | 6 | 1 | 0 | 0 | 0 | 0 | 101 | 22 | 0 | 1 | 0 |
| Sunny days | 30 | 24 | 29 | 30 | 31 | 30 | 31 | 29 | 28 | 31 | 28 | 31 |
| Rainy days | 1 | 4 | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Isla San Marcos is at