San Antonio weather in June
June in San Antonio: sweltering, a little rain, with clean air — a good time to visit.
#10 of 12 months in San Antonio · #471 of 604 destinations to visit in June · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
San Antonio climate normals — June
| Daytime high | 34°C / 94°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 24°C / 74°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 59 mm / 2.3 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 60% | 💧 humid |
| Dew point | 20°C / 69°F | |
| Sunshine | 12.1 h/day | |
| Daylight | 14 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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San Antonio in June — FAQ
- Is June a good time to visit San Antonio?
- June in San Antonio: sweltering, a little rain, with clean air — a good time to visit. It ranks #10 of 12 months for San Antonio on SeasonMap's comfort score (67/100).
- What is the weather like in San Antonio in June?
- In June, San Antonio averages a daily high of 34.4°C and a low of 23.6°C, with about 59.3 mm of rain over roughly 9.8 rainy days.
- What is the air quality in San Antonio in June?
- San Antonio has a mean US Air Quality Index of about 45 in June.