September · Netherlands
Best time to visit Haarlem in September Weather, crowds & prices
Weather in Haarlem in September
Average temperature 18°C, 104 mm of rain, about 8 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.9/10
Ranked #6 of 12 months
- Avg temp
- 18°C
- Rainfall
- 104 mm
- Humidity
- 79%
- Days with 6h+ sun
- 8
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Haarlem scores 6.9/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 18°C, 104 mm of rain, and roughly 8 days with 6+ hours of sunshine this month.
Haarlem sits west of Amsterdam with a medieval square, the Frans Hals Museum and beaches a short bike ride away.
September in Haarlem: mixed conditions, plan around the weather
September averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 104 mm this is a genuinely wet month: about 8 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 6.9/10 here, 6th of 12 months, against 8.8/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? June scores 1.9 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Haarlem in September?
- In September, Haarlem averages 18°C, 104 mm of rain, and about 8 days with 6+ hours of sunshine. Its climate-comfort score is 6.9/10.
- Is September a good time to visit Haarlem?
- September earns a 6.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Haarlem in September?
- Expect about 104 mm of rain in September. Average humidity is 79% and there are about 8 days with 6+ hours of sunshine.
Curated in Haarlem
Tickets & experiences
Things to do in Haarlem
Haarlem, Netherlands. Live activities and tours from GetYourGuide, matched to this destination.