Average annual temperature is 2.9 °C
Absolute maximum temperature: 27.9 °C
Absolute minimum temperature: -22.3 °C
Number of sunny days: 175 days
Number of rainy days: 113 days
Number of snow days: 77 days
Look at detailed online map of San Antonio (historical)
* Weather data for San Antonio (historical) United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 6.3 | 3.3 | 5.4 | 12.0 | 16.5 | 22.1 | 27.9 | 23.7 | 23.5 | 18.7 | 13.3 | 6.4 |
| Average daytime temperature (°C) | -3.5 | -1.8 | -0.9 | 5.9 | 12.3 | 17.3 | 24.5 | 21.2 | 17.3 | 12.5 | 5.7 | 0.3 |
| Average temperature (°C) | -8.2 | -7.7 | -5.2 | -0.7 | 5.6 | 10.3 | 17.0 | 14.2 | 10.4 | 5.5 | -0.8 | -6.2 |
| Average night temperature (°C) | -11.8 | -12.4 | -8.9 | -5.9 | -0.2 | 3.4 | 9.4 | 7.8 | 4.5 | -0.1 | -5.5 | -10.8 |
| Absolute minimum temperature (°C) | -20.4 | -21.3 | -17.4 | -16.5 | -3.2 | -2.6 | 5.9 | 5.5 | 0.5 | -7.6 | -16.1 | -22.3 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.7 | 7.8 | 8.7 | 11.8 | 12.4 | 13.5 | 13.4 | 11.9 | 11.0 | 10.2 | 8.7 | 7.4 |
| Precipitation (mm) | 80 | 72 | 123 | 11 | 56 | 39 | 43 | 103 | 57 | 11 | 17 | 36 |
| Sunny days | 13 | 11 | 11 | 17 | 11 | 11 | 13 | 12 | 16 | 20 | 21 | 19 |
| Rainy days | 1 | 0 | 2 | 5 | 20 | 19 | 18 | 19 | 14 | 9 | 3 | 3 |
| Snow days | 17 | 17 | 18 | 8 | 0 | 0 | 0 | 0 | 0 | 2 | 6 | 9 |
The best time to visit San Antonio (historical) during the most sunny months:
The largest precipitation sum in San Antonio (historical) is at