San Antonio Weather in August

August in San Antonio averages 31°C (88°F) during the day and 25°C (77°F) at night. The excellent conditions and low rainfall make it a solid month to visit.

Rainfall in San Antonio in August

Historically, the month has about 5 days of rain, averaging 17 mm (0.7 in) in total. When rain does fall, showers tend to be light and brief. Most days will be dry.

Temperature in San Antonio in August

If you're visiting San Antonio in August, expect excellent temperatures with highs of 31°C (88°F) and overnight lows of 25°C (77°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference. The average temperatures are warm, but some days will be hotter. Make sure to dress in light, breathable clothing and drink plenty of water.

Sunshine in San Antonio in August

The city usually sees around 304 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Average water temperature in August

With water at 26°C (79°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

If your ideal day consists of dry skies and pleasant temperatures, March, April, May, June, September, October and November typically offer the best circumstances for San Antonio.