St. Louis UV index in April
Typical ultraviolet levels for St. Louis during April, from the past year of data.
High
St. Louis
High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
6.9
UV Index
April average UTC
Low
Moderate
High
Very High
Extreme
April UV
6.8832
Risk level
High
Yearly peak
10.0513
Peak month
July
St. Louis UV index — monthly trend
Average UV index by month over the past year, with April highlighted.
Visiting St. Louis in April?
In April, St. Louis's typical UV index is about 6.8832 — a high risk level. High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
Across the year, St. Louis sees the strongest UV in Summer, peaking around 10.0513 in July. Plan sun protection accordingly.
