June in San Antonio averages a daily high of 33.6°C with nights around 22.4°C. Expect roughly 6.5 wet days totalling 82.4mm. 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. 22 years of June data.