UV Index in Ann Arbor, Michigan, United States

· America/Detroit

3.3
Moderate · clear-sky maximum Tuesday, October 20, 2026

At solar noon (01:19:48 PM) the sun reaches 37.2° above the horizon in Ann Arbor. Without clouds, that corresponds to a maximum UV index of about 3.3 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.

☀️ Sun Safety: When the UV index is high, protect yourself with sunscreen, shade, and a hat. Values of 6 or more indicate increased sunburn risk!

UV index in Ann Arbor, next 14 days

DateSun at noonClear-sky maxForecast max
37.2° 3.3 Moderate —
36.9° 3.2 Moderate —
36.5° 3.1 Moderate —
36.2° 3.1 Moderate —
35.8° 3.0 Moderate —
35.5° 3.0 Moderate —
35.1° 2.9 Low —
34.8° 2.8 Low —
34.5° 2.8 Low —
34.1° 2.7 Low —
33.8° 2.7 Low —
33.5° 2.6 Low —
33.2° 2.6 Low —
32.8° 2.5 Low —

Clear-sky values are calculated from the sun's height at solar noon (cloud-free sky, average ozone). Forecast values from Open-Meteo include clouds and load in your browser.

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The UV index in Ann Arbor measures the intensity of ultraviolet radiation reaching the ground. Values below 3 are considered low risk, while 6 and above require sun protection such as sunscreen, sunglasses, and shade. The clear-sky value shows how strong the sun can get on each day; the forecast shows what is expected with clouds. See today's sunrise and sunset times for Ann Arbor or discover the best light for photos during the golden hour in Ann Arbor.

About Ann Arbor

Ann Arbor serves as the county seat of Washtenaw County, Michigan, and has existed as a municipality since 1824. As of 2020, the population of the city is 123,851. The area covers 75.0 square kilometers at an elevation of 256 meters. Notable features located in the city include the public research university known as the University of Michigan, the large sports venue Michigan Stadium, and the Gerald R. Ford Presidential Library. The city maintains twin town relationships with Tübingen, Belize City, Hikone, Peterborough, and Juigalpa. Transportation access is provided by the Ann Arbor station.

AI-assisted description based on geographic data and editorial notes.