July in San Antonio averages a daily high of 34.5°C with nights around 23.3°C. Expect roughly 6.6 wet days totalling 84.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit San Antonio is February–April.
Based on SAN ANTONIO INCARNATE WORD, TX US (5.5km), 1995–2024. 21 years of July data.