Tucson UV index in May
Typical ultraviolet levels for Tucson during May, from the past year of data.
Very High
Tucson
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
10.4
UV Index
May average UTC
Low
Moderate
High
Very High
Extreme
May UV
10.3714
Risk level
Very High
Yearly peak
11.1867
Peak month
July
Tucson UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Tucson in May?
In May, Tucson's typical UV index is about 10.3714 — 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, Tucson sees the strongest UV in Summer, peaking around 11.1867 in July. Plan sun protection accordingly.
