Average annual temperature is 21.5 °C
Absolute maximum temperature: 42.2 °C
Absolute minimum temperature: -2.3 °C
Number of sunny days: 300 days
Number of rainy days: 65 days
Look at detailed online map of San Antonio
* Weather data for San Antonio 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) | 27.3 | 31.2 | 30.4 | 33.4 | 35.8 | 42.2 | 39.5 | 40.5 | 38.3 | 34.6 | 31.3 | 25.8 |
| Average daytime temperature (°C) | 20.6 | 20.9 | 25.0 | 28.8 | 31.3 | 37.7 | 36.3 | 35.8 | 35.1 | 27.9 | 21.3 | 19.3 |
| Average temperature (°C) | 13.1 | 12.7 | 17.3 | 20.8 | 24.5 | 30.9 | 30.3 | 29.9 | 28.7 | 21.6 | 14.9 | 12.6 |
| Average night temperature (°C) | 7.1 | 6.7 | 10.6 | 13.6 | 18.3 | 23.4 | 23.7 | 23.3 | 21.6 | 16.1 | 9.8 | 6.7 |
| Absolute minimum temperature (°C) | -0.4 | -2.3 | -0.4 | 7.5 | 15.1 | 16.7 | 20.2 | 19.0 | 19.2 | 2.4 | 2.7 | 0.0 |
| 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) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| 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) | 9.0 | 9.0 | 9.7 | 11.7 | 11.1 | 12.3 | 12.4 | 11.7 | 11.4 | 9.4 | 7.6 | 9.0 |
| Precipitation (mm) | 7 | 18 | 48 | 3 | 25 | 5 | 3 | 35 | 5 | 12 | 7 | 2 |
| Sunny days | 28 | 23 | 25 | 26 | 19 | 26 | 29 | 23 | 26 | 23 | 23 | 29 |
| Rainy days | 3 | 5 | 6 | 4 | 12 | 4 | 2 | 8 | 4 | 8 | 7 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Antonio is at