Average annual temperature is 16.2 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: 2.2 °C
Number of sunny days: 296 days
Number of rainy days: 69 days
Look at detailed online map of San Telmo
* Weather data for San Telmo 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) | 21.0 | 24.1 | 20.8 | 26.4 | 21.9 | 25.0 | 29.3 | 31.3 | 33.6 | 31.8 | 32.0 | 24.1 |
| Average daytime temperature (°C) | 16.7 | 16.8 | 16.9 | 19.5 | 20.1 | 22.1 | 26.1 | 26.6 | 25.8 | 25.5 | 23.1 | 19.9 |
| Average temperature (°C) | 11.8 | 11.3 | 12.2 | 14.1 | 15.6 | 17.4 | 20.4 | 21.3 | 20.5 | 19.4 | 16.6 | 13.9 |
| Average night temperature (°C) | 7.7 | 7.0 | 8.0 | 10.4 | 12.3 | 13.8 | 16.1 | 17.4 | 16.6 | 14.6 | 10.6 | 9.2 |
| Absolute minimum temperature (°C) | 4.2 | 2.2 | 3.7 | 5.1 | 8.6 | 11.3 | 12.9 | 15.7 | 12.1 | 9.7 | 5.4 | 6.4 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.4 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.5 | 9.2 | 9.4 | 11.0 | 11.4 | 12.0 | 12.1 | 10.8 | 10.9 | 10.4 | 8.9 | 8.7 |
| Precipitation (mm) | 83 | 49 | 68 | 0 | 0 | 2 | 0 | 85 | 0 | 0 | 39 | 52 |
| Sunny days | 16 | 15 | 21 | 27 | 29 | 27 | 30 | 27 | 27 | 30 | 24 | 23 |
| Rainy days | 15 | 13 | 10 | 3 | 2 | 3 | 1 | 4 | 3 | 1 | 6 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Telmo is at