San Antonio weather in 2024
San Antonio weather in 2024, with 366 daily observations from Open-Meteo archive data.
Interactive graph
Open San Antonio in the interactive graph
Use the graph view to inspect 2024 alongside other available years for San Antonio.
Year summary
In 2024, San Antonio averaged 28.1 C for daily highs and 17.4 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2024 with the 2023-2025 archive baseline. The 2024 average daily high was -0.1 C from that baseline, and total precipitation was +45.1 mm from the baseline total.
The warmest month was August, with an average high of 36.5 C, while January had the lowest average low at 4.6 C.
The wettest month was May, totaling 225.0 mm. The hottest day reached 40.6 C on August 21, 2024.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 4.6 | 15.6 | 111.0 | 31 |
| February | 10.3 | 21.8 | 69.1 | 29 |
| March | 13.5 | 24.4 | 70.5 | 31 |
| April | 17.4 | 27.9 | 86.3 | 30 |
| May | 21.9 | 31.5 | 225.0 | 31 |
| June | 24.3 | 34.4 | 107.4 | 30 |
| July | 24.0 | 33.8 | 96.8 | 31 |
| August | 25.5 | 36.5 | 23.0 | 31 |
| September | 22.7 | 33.3 | 46.8 | 30 |
| October | 19.7 | 32.1 | 5.4 | 31 |
| November | 13.7 | 25.3 | 59.8 | 30 |
| December | 11.4 | 20.8 | 63.9 | 31 |
Daily records in 2024
| Record | Date | Value |
|---|---|---|
| Hottest day | August 21, 2024 | 40.6 C |
| Coldest night | January 17, 2024 | -7.5 C |
| Wettest day | May 1, 2024 | 47.3 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.