Weather in Alphen aan den Rijn in September
Alphen aan den Rijn, Netherlands averages a high of 18.6°C (65.5°F) and low of 12.2°C (54°F) in September, with 12 rain days and 8.8 hours of daily sunshine. Travel score: 67.9/100 (Good). The best time to visit Alphen aan den Rijn is August.
High
19°C65°F
Low
12°C54°F
🌧️
12
rain days
☀️
8.8
hrs/day sunshine
💧
80%
humidity
68— Good
September in Alphen aan den Rijn is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Alphen aan den Rijn?
How much does it rain in Alphen aan den Rijn in September?
Alphen aan den Rijn receives an average of 76.9mm of rainfall across 12 rainy days in September. The annual total is 853.8mm.
What should I pack for Alphen aan den Rijn in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 19°C
Recommended
🧥
Light rain jacket
Some rainy days expected (12 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
🎉Visiting Netherlands in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31