Weather in Norwalk in September
Norwalk, United States averages a high of 29.6°C (85.3°F) and low of 17.5°C (63.5°F) in September, with 1 rain days and 11.5 hours of daily sunshine. Travel score: 97/100 (Excellent). The best time to visit Norwalk is August.
High
30°C85°F
Low
18°C64°F
🌧️
1
rain days
☀️
11.5
hrs/day sunshine
💧
66%
humidity
97— Excellent
September in Norwalk is hot and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Norwalk?
How much does it rain in Norwalk in September?
Norwalk receives an average of 7.4mm of rainfall across 1 rainy days in September. The annual total is 356.9mm.
What should I pack for Norwalk in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 30°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 12°C from day to night
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