Late summer · Weather & things to do
San Antonio in August
San Antonio's warmest month brings highs averaging 98°F (36°C), lows of 76°F (24°C) and about 2.4 in (62 mm) of rain.
With a comfort score of 56/100 (12th of 12), it's one of the toughest months, held back mainly by heat.
- Avg high
- 98°F (36°C)
- Avg low
- 76°F (24°C)
- Rain
- 2.4 in (62 mm)
- Humidity
- 61%
- Cloud cover
- 41%
- Daylight
- ~13 h 04 min
- Comfort score
- 56/100 · Fair
What August feels like
Heat sets the pace, with highs around 98°F (36°C). Get out early and keep the hottest hours for somewhere cool.
Mornings start much cooler: lows average 76°F (24°C), about 12°C (22°F) below the afternoon high.
Some rain is likely, about 2.4 in (62 mm) in the month, so pack for a shower or two.
Plan around August
August is one of the lower-scoring months here; the best are October – March.
- Comfort holds steady from July (57 → 56/100).
- Our Texas BBQ Trail route recommends Oct – Apr, so August falls outside its suggested window.
- Our San Antonio & the Texas Hill Country route is planned for Late Nov – Dec, a window set by the holiday season rather than the weather — August falls outside it.
What to pack for August
- Light, breathable clothes98°F afternoons
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- A warm layer for eveningsnights drop to 76°F
- Packable rain jacket or umbrellaabout 2.4 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in San Antonio in August
Afternoons run hot (98°F), so these picks mix early-start outdoor spots with cool indoor breaks.
Mi Tierra Café y Panadería
24-hour Tex-Mex restaurant and bakery in Market Square since 1941.
Why now Go early — afternoons average 98°F.
San Fernando Cathedral
Cathedral founded in 1738 on Main Plaza, whose facade hosts San Antonio | The Saga, a free light projection on the city's history.
Why now A break from 98°F afternoons.
The Alamo
1718 mission and site of the 1836 battle, with the church and Long Barrack.
Why now Somewhere to sit out the hottest hours.
2M Smokehouse
South Side barbecue with Mexican-American touches like serrano-cheese sausage.
Historic Market Square
Mexican-style marketplace with crafts, food stalls and weekend music.
Why now Best first thing, before the 98°F afternoon heat.
Pearl
The 1883 Pearl Brewery turned food and shopping district on the River Walk, with a weekend farmers market and holiday events.
Nearby in August
- Texas Hill Country in August~58 mi · highs 95°F, 2.2 in rain · 1°C (2°F) cooler by day, about as wet
- Austin in August~74 mi · highs 98°F, 2.5 in rain · similar daytime temperatures, about as wet
- Downtown Houston in August~189 mi · highs 94°F, 4.9 in rain · 2°C (3°F) cooler by day, wetter
- Dallas in August~252 mi · highs 97°F, 2.4 in rain · similar daytime temperatures, about as wet
These averages also cover Downtown San Antonio & Hemisfair and Pearl & Museum Reach.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
San Antonio in August: quick answers
Is August a good time to visit San Antonio?
It's one of the tougher months here, scoring 56/100, held back mainly by heat. The best months are October – March. Expect highs of 98°F (36°C) and 2.4 in (62 mm) of rain. Our Texas BBQ Trail route recommends Oct – Apr, so August is outside its suggested window.
How hot is San Antonio in August?
Average highs are 98°F (36°C) and average lows 76°F (24°C), making it the warmest month by daytime highs.
Does it rain a lot in San Antonio in August?
Some: about 2.4 in (62 mm) of rain falls across August on average, the 6th-driest month of the year. The annual total is about 30.7 in (779 mm).
What should I pack for San Antonio in August?
Bring light, breathable clothes (98°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), a warm layer for evenings (nights drop to 76°F) and packable rain jacket or umbrella (about 2.4 in of rain).
More on San Antonio
Planning San Antonio in August?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.