Average annual temperature is 20.0 °C
Absolute maximum temperature: 41.4 °C
Absolute minimum temperature: -4.9 °C
Number of sunny days: 313 days
Number of rainy days: 51 days
Number of snow days: 1 day
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) | 22.7 | 25.2 | 27.6 | 32.7 | 35.4 | 40.6 | 41.2 | 41.4 | 37.5 | 32.3 | 29.9 | 23.0 |
| Average daytime temperature (°C) | 17.2 | 17.8 | 22.8 | 27.4 | 31.4 | 36.3 | 38.0 | 35.1 | 34.8 | 27.5 | 20.5 | 16.8 |
| Average temperature (°C) | 9.2 | 9.7 | 15.0 | 19.4 | 24.6 | 29.5 | 31.8 | 28.9 | 27.9 | 20.5 | 13.5 | 9.9 |
| Average night temperature (°C) | 2.9 | 3.4 | 7.8 | 11.0 | 16.7 | 21.3 | 23.9 | 22.0 | 20.6 | 13.9 | 7.8 | 3.6 |
| Absolute minimum temperature (°C) | -3.2 | -4.9 | -0.8 | 1.8 | 12.5 | 16.2 | 20.7 | 18.5 | 16.0 | 0.3 | 1.0 | -1.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 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 | 13.3 | 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 | 8.9 | 10.2 | 11.9 | 12.0 | 12.8 | 12.7 | 11.7 | 11.4 | 10.0 | 8.9 | 9.1 |
| Precipitation (mm) | 6 | 9 | 3 | 0 | 2 | 0 | 1 | 17 | 7 | 8 | 7 | 1 |
| Sunny days | 27 | 21 | 26 | 30 | 24 | 29 | 29 | 22 | 23 | 28 | 25 | 29 |
| Rainy days | 4 | 7 | 4 | 0 | 7 | 1 | 2 | 9 | 7 | 3 | 5 | 2 |
| Snow days | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Antonio is at