Charleston UV index in May
Typical ultraviolet levels for Charleston during May, from the past year of data.
Very High
Charleston
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
10
UV Index
May average
Low
Moderate
High
Very High
Extreme
May UV
9.9997
Risk level
Very High
Yearly peak
10.9387
Peak month
July
Charleston UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Charleston in May?
In May, Charleston's typical UV index is about 9.9997 — 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, Charleston sees the strongest UV in Summer, peaking around 10.9387 in July. Plan sun protection accordingly.
