Weather in Lewisville in September
Lewisville, United States averages a high of 30.6°C (87.1°F) and low of 21.6°C (70.9°F) in September, with 6 rain days and 10.5 hours of daily sunshine. Travel score: 91.2/100 (Excellent). The best time to visit Lewisville is September.
High
31°C87°F
Low
22°C71°F
🌧️
6
rain days
☀️
10.5
hrs/day sunshine
💧
63%
humidity
91— Excellent
September in Lewisville is hot and mostly dry — excellent conditions for exploring.
What are the average temperatures in Lewisville?
How much does it rain in Lewisville in September?
Lewisville receives an average of 72.7mm of rainfall across 6 rainy days in September. The annual total is 1011.2mm.
What should I pack for Lewisville in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 31°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
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