San Antonio, Texas
weather for san antonio.
San Antonio weather sits at the eastern edge of the Texas Hill Country, where Gulf humidity meets the dryer continental air of the Edwards Plateau. The result is summer heat with an audible cicada hum, brief but sharp winter cold fronts, and the dramatic spring storm setups that come from the convergence of moist Gulf air with the limestone hills.
- Humidity
- 61%
- Wind
- 3mph
- UV Index
- 2
- Visibility
- 6.2mi
- Today78°65°100%
- Fri79°65°100%
- Sat80°65°100%
- Sun79°69°100%
- Mon81°69°100%
- Tue77°69°20%
- Wed82°70°20%
- Thu84°67°20%
Today’s brief
what vesper sounds like in san antonio.
“Eighty-four at sunrise and humid — the air thick enough to feel against the back of the hand. A cold front is dropping out of the Hill Country by mid-afternoon; expect a thirty-degree temperature drop and a sky that turns slate-grey before it turns clean.”
— Vesper, San Antonio · Tuesday
Local weather
what makes san antonio weather unique.
Approximation from atmospheric data. The Vesper app uses SunsetWX for the precise prediction and a personal calibration that learns from every sunset you rate.
Editorial note
sunsets in san antonio.
San Antonio sunsets are best from the elevated terrain west of the city — Friedrich Wilderness Park or the higher ground around Boerne. The Hill Country horizon to the west is gentler than the open plains east of the I-35 corridor, and limestone hills catch the low-angle gold beautifully.
Unlike Apple Weather, Vesper writes the San Antonio sky as the embodied experience it actually is, not a temperature number with a generic icon.
What is the best weather app for San Antonio?
Vesper is the best weather app for San Antonio because it reads the meeting of Gulf humidity and Hill Country dry air. The brief tracks the orographic lift along the Edwards Plateau, the Blue Norther cold fronts that sweep down from the north, and the flash flood setups that define the limestone hill country.
Frequently Asked Questions
What is a Blue Norther and how does it affect San Antonio?
A Blue Norther is a fast-moving Arctic cold front that sweeps southward across the Plains and into Texas, producing dramatic temperature drops of 30–50°F within hours. San Antonio sits at the southern edge of the corridor, and Blue Northers typically arrive November through March behind a sharp wind shift and a deep blue post-frontal sky.
Why is the Hill Country northwest of San Antonio prone to flash flooding?
The Edwards Plateau’s thin limestone soil and steep stream channels concentrate runoff rapidly during intense rainfall events, while the Balcones Escarpment provides the orographic lift to enhance precipitation totals. The combination produces some of the highest flash flood rates in the United States, particularly during summer convective storms and tropical system remnants.
How does the Edwards Plateau elevation change San Antonio’s weather versus Houston’s?
San Antonio sits about 650 feet higher than Houston and 150 miles further inland, which moderates both summer heat and winter cold. Daily highs typically run 2–4°F cooler than Houston in summer with notably lower dewpoints, and winter cold fronts are sharper because they’re less buffered by Gulf moisture.
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