Haarlem weather in September 2025

Expect 18°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Haarlem in September. Check more long-term weather averages for Haarlem in September before you book your next holiday to Netherlands in 2025/2026.

  • 18°C maximum daytime temperature in September in Haarlem18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in September in Haarlem16
    16 days with some rainfall
  • 11°C minimum night-time temperature in September in Haarlem11
    11°C min night temperature
  • 13 hours of daylight per day in September in Haarlem13
    13 hours of daylight per day
  • No heat & humidity in September in Haarlem0
    No heat & humidity
  • 80 mm monthly rainfall in September in Haarlem80
    80 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Haarlem4
    4 (Moderate) UV index

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The September weather guide for Netherlands (Haarlem) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the Netherlands

How hot is it in Haarlem in September?

Daytime temperatures usually reach 18°C in Haarlem in September, falling to 11°C at night.

How sunny is it in Haarlem in September?

There are normally 5 hours of bright sunshine each day in Haarlem in September - that's 36% of daylight hours.

Does it rain in Haarlem in September?

There are usually 16 days with some rain in Haarlem in September and the average monthly rainfall is 80mm.

Haarlem September sunrise & sunset times

Browse the sunrise and sunset times for Haarlem in September 2025. Select a month to view Haarlem sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:53 19:29
Monday, 15th September 2025 06:16 18:56
Tuesday, 30th September 2025 06:41 18:21

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