Weather in Rotterdam in September
Rotterdam, Netherlands averages a high of 18.8°C (65.8°F) and low of 12.2°C (54°F) in September, with 11 rain days and 8.9 hours of daily sunshine. Travel score: 69.9/100 (Good). The best time to visit Rotterdam is June.
High
19°C66°F
Low
12°C54°F
🌧️
11
rain days
☀️
8.9
hrs/day sunshine
💧
80%
humidity
70— Good
September in Rotterdam is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Rotterdam?
How much does it rain in Rotterdam in September?
Rotterdam receives an average of 67.7mm of rainfall across 11 rainy days in September. The annual total is 789.9mm.
What should I pack for Rotterdam 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 (11 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to Netherlands 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