Average annual temperature is 20.5 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 4.1 °C
Number of sunny days: 257 days
Number of rainy days: 108 days
Look at detailed online map of San Antonio Texas
* Weather data for San Antonio Texas 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) | 26.9 | 30.4 | 32.5 | 33.6 | 34.3 | 37.9 | 32.8 | 32.0 | 34.4 | 31.8 | 29.5 | 23.6 |
| Average daytime temperature (°C) | 24.4 | 26.8 | 29.8 | 30.9 | 31.3 | 34.5 | 29.4 | 28.5 | 30.3 | 27.3 | 25.7 | 20.4 |
| Average temperature (°C) | 16.5 | 18.3 | 21.5 | 22.9 | 23.4 | 26.0 | 22.1 | 21.4 | 22.2 | 20.0 | 17.7 | 13.9 |
| Average night temperature (°C) | 8.9 | 10.6 | 13.6 | 14.8 | 16.0 | 17.7 | 15.8 | 15.6 | 14.8 | 14.2 | 11.0 | 8.8 |
| Absolute minimum temperature (°C) | 6.0 | 5.5 | 7.9 | 11.9 | 13.0 | 15.4 | 13.0 | 12.7 | 12.6 | 8.6 | 7.1 | 4.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 10.0 | 10.6 | 11.2 | 11.7 | 11.8 | 12.3 | 11.9 | 11.3 | 11.3 | 10.0 | 9.9 | 8.1 |
| Precipitation (mm) | 0 | 0 | 5 | 1 | 18 | 26 | 54 | 86 | 40 | 44 | 37 | 44 |
| Sunny days | 29 | 28 | 25 | 28 | 21 | 26 | 13 | 9 | 24 | 15 | 23 | 16 |
| Rainy days | 2 | 0 | 6 | 2 | 10 | 4 | 18 | 22 | 6 | 16 | 7 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Antonio Texas is at