Weather in Ann Arbor in September
Ann Arbor, United States averages a high of 22.7°C (72.9°F) and low of 13.5°C (56.3°F) in September, with 8 rain days and 9.6 hours of daily sunshine. Travel score: 82.3/100 (Excellent). The best time to visit Ann Arbor is July.
High
23°C73°F
Low
14°C56°F
🌧️
8
rain days
☀️
9.6
hrs/day sunshine
💧
72%
humidity
82— Excellent
September in Ann Arbor is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Ann Arbor?
How much does it rain in Ann Arbor in September?
Ann Arbor receives an average of 68.4mm of rainfall across 8 rainy days in September. The annual total is 868mm.
What should I pack for Ann Arbor in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (8 days)
☔
Umbrella
Be prepared for occasional showers
🎉Visiting United States in September?
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Data based on 1994–2024 averages · Last updated: 2024-12-31