St. Louis UV index in March
Typical ultraviolet levels for St. Louis during March, from the past year of data.
Moderate
St. Louis
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
4.4
UV Index
March average
Low
Moderate
High
Very High
Extreme
March UV
4.3961
Risk level
Moderate
Yearly peak
10.0513
Peak month
July
St. Louis UV index — monthly trend
Average UV index by month over the past year, with March highlighted.
Visiting St. Louis in March?
In March, St. Louis's typical UV index is about 4.3961 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, St. Louis sees the strongest UV in Summer, peaking around 10.0513 in July. Plan sun protection accordingly.
