Summer temperatures · Texas
How hot does San Antonio get in summer?
San Antonio right now
62°FClear skies
- Today68°F / 60°FRain
- Tomorrow70°F / 52°FRain
- Monday60°F / 46°FClouds
Nice out. Annoyingly.
Live from OpenWeatherMap. Alerts from the National Weather Service.
In a typical summer, June to August, San Antonio averages highs around 94°F and lows around 74°F.
About 122 days a year reach 90°F or hotter, and about 18 reach 100°F. About 213 days a year get to 80°F or warmer. That makes it the 7th hottest summer of the 129 US cities we track.
Last updated
The hottest high in the forecast for the next 48 hours is about 71°F.
San Antonio passes 90°F on about 122 days a year, so the shade along the River Walk is the most sought-after real estate in Texas.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 94°F |
|---|---|
| Average summer low | 74°F |
| Days a year at 80°F or warmer | 213 |
| Days a year at 90°F or hotter | 122 |
| Days a year at 100°F or hotter | 18 |
| Average winter high, for comparison | 65°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Corpus Christi, Texas: highs around 93°F, lows around 75°F
- Dallas, Texas: highs around 94°F, lows around 75°F
- Houston, Texas: highs around 94°F, lows around 75°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00012921.