Weather in Heerlen in September
Heerlen, Netherlands averages a high of 19°C (66.2°F) and low of 11.6°C (52.9°F) in September, with 10 rain days and 8.4 hours of daily sunshine. Travel score: 71.8/100 (Good). The best time to visit Heerlen is August.
High
19°C66°F
Low
12°C53°F
🌧️
10
rain days
☀️
8.4
hrs/day sunshine
💧
77%
humidity
72— Good
September in Heerlen is mild and occasionally wet — good for most activities.
What are the average temperatures in Heerlen?
How much does it rain in Heerlen in September?
Heerlen receives an average of 59mm of rainfall across 10 rainy days in September. The annual total is 759.4mm.
What should I pack for Heerlen 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 (10 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