Louisville UV index in January
Typical ultraviolet levels for Louisville during January, from the past year of data.
Low
Louisville
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
1.7234
Risk level
Low
Yearly peak
10.2785
Peak month
July
Louisville UV index — monthly trend
Average UV index by month over the past year, with January highlighted.
Visiting Louisville in January?
In January, Louisville's typical UV index is about 1.7234 — a low risk level. Low UV. You can safely enjoy being outside; the sun's rays are not very strong.
Across the year, Louisville sees the strongest UV in Summer, peaking around 10.2785 in July. Plan sun protection accordingly.
