St. Louis UV index in January
Typical ultraviolet levels for St. Louis during January, from the past year of data.
Low
St. Louis
Low UV. You can safely enjoy being outside; the sun's rays are not very strong.
1.7
UV Index
January average UTC
Low
Moderate
High
Very High
Extreme
January UV
1.6924
Risk level
Low
Yearly peak
10.0513
Peak month
July
St. Louis UV index — monthly trend
Average UV index by month over the past year, with January highlighted.
Visiting St. Louis in January?
In January, St. Louis's typical UV index is about 1.6924 — a low risk level. Low UV. You can safely enjoy being outside; the sun's rays are not very strong.
Across the year, St. Louis sees the strongest UV in Summer, peaking around 10.0513 in July. Plan sun protection accordingly.
