Austin UV index in September
Typical ultraviolet levels for Austin during September, from the past year of data.
Very High
Austin
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
9.8
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
9.8346
Risk level
Very High
Yearly peak
11.8881
Peak month
July
Austin UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Austin in September?
In September, Austin's typical UV index is about 9.8346 — a very high risk level. Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
Across the year, Austin sees the strongest UV in Summer, peaking around 11.8881 in July. Plan sun protection accordingly.
