Month guide · San Antonio · United States
San Antonio in August
What August is really like in San Antonio: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: Csyberblue, Public domain
Quick answer
August is a month many travellers avoid. Expect average highs of 36°C (97°F), lows of 23°C (73°F), about 5 rainy days and roughly 13.2 hours of daylight. The hottest month; hotel rates dip and the River Walk is quietest at midday.
Key facts
- Average high / low
- 36°C (97°F) / 23°C (73°F)
- Rainy days
- About 5
- Daylight
- About 13.2 hours
- Crowds
- Quiet
- Hotel prices
- Low
Weather in August
August is the warmest month in San Antonio: days average 36°C (97°F) against a yearly average high of 27°C (81°F), and nights fall to about 23°C (73°F). Rain falls on roughly 5 of its 31 days. Compared with July (35°C (95°F)), August is about as warm; by September highs drop to around 32°C (90°F).
- Sunrise (15 August)
- About 07:02
- Sunset (15 August)
- About 20:15
- Daylight
- About 13.2 hours
Summer (June–August). Very hot, with highs around 35°C; best for theme parks, water parks and early-morning sightseeing.
Crowds and prices
On a 1–5 scale, August rates 2 for crowds (the peak is April at 5) and 2 for hotel prices (highest in April). That makes August one of the better-value months to book.
Events in August
August has no major recurring festival in San Antonio, which usually means easier bookings.
What to do in August
With intense heat, plan around indoor sights and keep outdoor time flexible.
Theme park · Westover Hills
SeaWorld San Antonio
A marine theme park on the west side of the city with animal presentations, roller coasters and aquarium areas, plus the separate Aquatica water park next door.
- Time needed
- Full day
- Cost
- Expensive
- Kids
- Outdoors
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Museum · Museum Reach
San Antonio Museum of Art
Arrive along the River Walk from the Pearl, which brings you to the museum's riverside entrance.
- Time needed
- 2 hours
- Cost
- Mid-priced
- Art
- Rainy day
- Architecture
Museum · Alamo Heights
McNay Art Museum
The first modern art museum in Texas occupies the Spanish Colonial Revival mansion of collector Marion Koogler McNay, with a courtyard, sculpture garden and modern wing.
- Time needed
- 2 hours
- Cost
- Mid-priced
- Art
- Rainy day
- Couples
- Architecture
Museum · Brackenridge Park
Witte Museum
Pair it with the Japanese Tea Garden and the zoo for a full Brackenridge Park day.
- Time needed
- 2 hours
- Cost
- Mid-priced
- Kids
- Rainy day
- History
What to pack
For highs near 36°C, lows near 23°C and 5 wet days: light, breathable clothes, a sun hat and high-factor sunscreen; comfortable walking shoes.
Is August a good time to visit San Antonio?
A month many travellers avoid. If your dates are flexible, March–April and October–November are better overall. Compare every month.
San Antonio in other months
Questions travellers ask
+Is August a good time to visit San Antonio?
It is a month many travellers avoid. The hottest month; hotel rates dip and the River Walk is quietest at midday.
+How warm is San Antonio in August?
Average highs are around 36°C (97°F) and lows around 23°C (73°F).
+Does it rain a lot in San Antonio in August?
Expect rain on about 5 days of the month.