Chicago UV index in August
Typical ultraviolet levels for Chicago during August, from the past year of data.
Very High
Chicago
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
8.5
UV Index
August average UTC
Low
Moderate
High
Very High
Extreme
August UV
8.4824
Risk level
Very High
Yearly peak
9.2667
Peak month
July
Chicago UV index — monthly trend
Average UV index by month over the past year, with August highlighted.
Visiting Chicago in August?
In August, Chicago's typical UV index is about 8.4824 — 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, Chicago sees the strongest UV in Summer, peaking around 9.2667 in July. Plan sun protection accordingly.
