Houston UV index in August
Typical ultraviolet levels for Houston during August, from the past year of data.
Extreme
Houston
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
11.5
UV Index
August average UTC
Low
Moderate
High
Very High
Extreme
August UV
11.5163
Risk level
Extreme
Yearly peak
11.96
Peak month
July
Houston UV index — monthly trend
Average UV index by month over the past year, with August highlighted.
Visiting Houston in August?
In August, Houston's typical UV index is about 11.5163 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Houston sees the strongest UV in Summer, peaking around 11.96 in July. Plan sun protection accordingly.
