Average annual temperature is 21.0 °C
Absolute maximum temperature: 30.8 °C
Absolute minimum temperature: 12.4 °C
Number of sunny days: 108 days
Number of rainy days: 257 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) | 25.9 | 27.0 | 27.8 | 28.9 | 30.8 | 29.6 | 27.5 | 27.4 | 26.4 | 26.2 | 27.2 | 26.5 |
| Average daytime temperature (°C) | 23.8 | 25.3 | 25.6 | 26.8 | 28.1 | 27.4 | 25.5 | 25.1 | 25.0 | 23.8 | 24.7 | 23.6 |
| Average temperature (°C) | 19.5 | 20.5 | 20.2 | 21.7 | 22.9 | 22.4 | 21.5 | 21.3 | 21.3 | 20.3 | 21.1 | 19.4 |
| Average night temperature (°C) | 15.3 | 15.8 | 16.1 | 17.1 | 18.5 | 18.6 | 18.7 | 18.7 | 18.7 | 17.8 | 18.3 | 16.3 |
| Absolute minimum temperature (°C) | 12.9 | 13.9 | 12.6 | 15.6 | 16.2 | 16.8 | 16.2 | 17.4 | 17.0 | 15.9 | 15.1 | 12.4 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.1 | 10.7 | 11.1 | 11.7 | 11.7 | 11.2 | 9.9 | 9.9 | 10.0 | 8.1 | 10.1 | 9.1 |
| Precipitation (mm) | 21 | 4 | 8 | 9 | 53 | 165 | 281 | 230 | 217 | 339 | 77 | 31 |
| Sunny days | 16 | 22 | 23 | 21 | 9 | 12 | 0 | 0 | 0 | 1 | 1 | 3 |
| Rainy days | 15 | 6 | 8 | 9 | 22 | 18 | 31 | 31 | 30 | 30 | 29 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Antonio is at