San Antonio Climate: Weather by Month and Best Time to Visit
Best months for San Antonio: October, November, April, February.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 17°C | 6°C | 57 mm | 7 | – | – | 7.4 |
| February | 20°C | 8°C | 58 mm | 8 | – | – | 7.8 |
| March | 23°C | 12°C | 79 mm | 9 | – | – | 7.8 |
| April | 27°C | 15°C | 78 mm | 9 | – | – | 7.9 |
| May | 30°C | 20°C | 102 mm | 11 | – | – | 7.1 |
| June | 33°C | 23°C | 70 mm | 9 | – | – | 6.6 |
| July | 35°C | 23°C | 50 mm | 6 | – | – | 6.7 |
| August | 35°C | 24°C | 50 mm | 6 | – | – | 6.6 |
| September | 32°C | 21°C | 77 mm | 9 | – | – | 7.1 |
| October | 28°C | 16°C | 82 mm | 8 | – | – | 8.1 |
| November | 22°C | 11°C | 68 mm | 7 | – | – | 8.1 |
| December | 18°C | 7°C | 63 mm | 8 | – | – | 7.4 |