Weather in Sylmar in September
Sylmar, United States averages a high of 30.9°C (87.6°F) and low of 17.5°C (63.5°F) in September, with 1 rain days and 11.7 hours of daily sunshine. Travel score: 99/100 (Excellent). The best time to visit Sylmar is August.
High
31°C88°F
Low
18°C64°F
🌧️
1
rain days
☀️
11.7
hrs/day sunshine
💧
53%
humidity
99— Excellent
September in Sylmar is hot and dry — excellent conditions for exploring.
What are the average temperatures in Sylmar?
How much does it rain in Sylmar in September?
Sylmar receives an average of 5.5mm of rainfall across 1 rainy days in September. The annual total is 383.9mm.
What should I pack for Sylmar 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+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 13°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