Weather in Carlsbad in September
Carlsbad, United States averages a high of 24.9°C (76.8°F) and low of 18.5°C (65.3°F) in September, with 1 rain days and 11.5 hours of daily sunshine. Travel score: 93.2/100 (Excellent). The best time to visit Carlsbad is August.
High
25°C77°F
Low
19°C65°F
🌧️
1
rain days
☀️
11.5
hrs/day sunshine
💧
78%
humidity
93— Excellent
September in Carlsbad is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Carlsbad?
How much does it rain in Carlsbad in September?
Carlsbad receives an average of 5.9mm of rainfall across 1 rainy days in September. The annual total is 347.7mm.
What should I pack for Carlsbad in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
12 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