San Antonio UV index in August
Typical ultraviolet levels for San Antonio during August, from the past year of data.
Extreme
San Antonio
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
12.1
UV Index
August average UTC
Low
Moderate
High
Very High
Extreme
August UV
12.1358
Risk level
Extreme
Yearly peak
12.6002
Peak month
July
San Antonio UV index — monthly trend
Average UV index by month over the past year, with August highlighted.
Visiting San Antonio in August?
In August, San Antonio's typical UV index is about 12.1358 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, San Antonio sees the strongest UV in Summer, peaking around 12.6002 in July. Plan sun protection accordingly.
