Columbia UV index in May
Typical ultraviolet levels for Columbia during May, from the past year of data.
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
May average
Columbia UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Columbia in May?
In May, Columbia's typical UV index is about 9.7004 — 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, Columbia sees the strongest UV in Summer, peaking around 10.6911 in July. Plan sun protection accordingly.