Weather in Castelldefels in September
Castelldefels, Spain averages a high of 24.2°C (75.6°F) and low of 18.7°C (65.7°F) in September, with 11 rain days and 10.3 hours of daily sunshine. Travel score: 81.1/100 (Excellent). The best time to visit Castelldefels is July.
High
24°C76°F
Low
19°C66°F
🌧️
11
rain days
☀️
10.3
hrs/day sunshine
💧
77%
humidity
81— Excellent
September in Castelldefels is warm and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in Castelldefels?
How much does it rain in Castelldefels in September?
Castelldefels receives an average of 83mm of rainfall across 11 rainy days in September. The annual total is 611.7mm.
What should I pack for Castelldefels in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (11 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Spain 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