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Ann Arbor UV Index Today

Day Summary

The UV index in Ann Arbor, United States Flag of United States will reach a high of 7.1 today. This means a high level of sun exposure. See our tips below to stay safe!

Last checked: 2025-08-01

Hourly Forecast Chart

Today's Safety Tips

Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.

Ann Arbor's UV Index

The UV index in Ann Arbor varies throughout the year, reaching its highest levels around 7 to 8 during summer months and dropping to 1 or 2 in the winter. Spring and fall have moderate UV levels around 3 to 5.

Weather Seasons

UV index

Ann Arbor experiences four distinct seasons. Winters are cold with snow, while summers are warm and sometimes humid. Spring brings mild temperatures and blooming plants, and fall features cooler air and colorful leaves.

Ann Arbor's Climate

Compared to the wider Midwest region, Ann Arbor has slightly milder winters than places further north but similar summer warmth. Neighboring states like Ohio and Indiana have comparable seasonal patterns and UV levels, with only minor differences in temperature.

Hourly UV Index Trend

See the UV index hour by hour for Ann Arbor. When the level is high, it's smart to find some shade.

Disclaimer

* The information on this page about the UV index in Ann Arbor is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.