Weather in Grand Rapids in September
Grand Rapids, United States averages a high of 22.7°C (72.9°F) and low of 13.8°C (56.8°F) in September, with 8 rain days and 9.8 hours of daily sunshine. Travel score: 82.7/100 (Excellent). The best time to visit Grand Rapids is August.
High
23°C73°F
Low
14°C57°F
🌧️
8
rain days
☀️
9.8
hrs/day sunshine
💧
71%
humidity
83— Excellent
September in Grand Rapids is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Grand Rapids?
How much does it rain in Grand Rapids in September?
Grand Rapids receives an average of 68mm of rainfall across 8 rainy days in September. The annual total is 931.8mm.
What should I pack for Grand Rapids 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
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31