Weather in Waukegan in September
Waukegan, United States averages a high of 21.9°C (71.4°F) and low of 16.9°C (62.4°F) in September, with 8 rain days and 9.8 hours of daily sunshine. Travel score: 83.3/100 (Excellent). The best time to visit Waukegan is September.
High
22°C71°F
Low
17°C62°F
🌧️
8
rain days
☀️
9.8
hrs/day sunshine
💧
72%
humidity
83— Excellent
September in Waukegan is mild and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Waukegan?
How much does it rain in Waukegan in September?
Waukegan receives an average of 69.3mm of rainfall across 8 rainy days in September. The annual total is 906.9mm.
What should I pack for Waukegan in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 22°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