The temperatures in Haarlem in September are usually low and can range between 14°C and 18°C.
You can expect about 3 to 8 days of rain in Haarlem during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Haarlem in September 2026.
If you’re planning to visit Haarlem in the near future, we highly recommend that you review the 14 day weather forecast for Haarlem before you arrive.
Temperatures
18° / 14°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
90
mm
Sun Hours
9.4
Hrs
