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
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.
