Mesa UV index in September
Typical ultraviolet levels for Mesa during September, from the past year of data.
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
September average UTC
Mesa UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Mesa in September?
In September, Mesa's typical UV index is about 8.2226 — 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, Mesa sees the strongest UV in Summer, peaking around 10.317 in July. Plan sun protection accordingly.