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September Weather in Zoetermeer, Netherlands

Last updated: August 27, 2025

In September, the average temperature in Zoetermeer, Netherlands hovers around 15°C (60°F), making it a pleasant time to explore. However, be prepared for a range of temperatures, as it can dip to a cool 4°C (40°F) or rise to a warm 31°C (87°F). Expect about 75 mm (3.0 in) of precipitation spread over 11 days, and with an average humidity of 82%, it's wise to pack accordingly!

September Temperature in Zoetermeer

In September in Zoetermeer, the average temperature is 15°C (60°F), with maximums reaching 31°C (87°F) and minimums dropping as low as 4°C (40°F). This pleasant range makes it a great time for travelers to explore the beauty and attractions of Zoetermeer.

September Weather in Zoetermeer: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Zoetermeer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zoetermeer, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (87°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404144495663656559544643
Data source: Temperature data for Zoetermeer generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Zoetermeer

In Zoetermeer in September, the precipitation amount is 75 mm (3.0 in) over a span of 11 days.

September Precipitation Trends in Zoetermeer

The chart displays monthly precipitation patterns in Zoetermeer, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Zoetermeer, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec576569446572688575925690
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Zoetermeer

In Zoetermeer in September humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.

September Average Humidity in Zoetermeer

This chart illustrates the average monthly humidity levels in Zoetermeer, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Zoetermeer is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Zoetermeer

In Zoetermeer in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Zoetermeer.

Maximum UV Index Levels in Zoetermeer for September

The chart shows the monthly maximum UV Index (UVI) for Zoetermeer in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Zoetermeer typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Zoetermeer September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Zoetermeer Compares to Other Months

Weather in Zoetermeer varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Zoetermeer, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Zoetermeer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)57 mm (2.3 inches)91%low
February Weather5°C (42°F)65 mm (2.6 inches)89%low
March Weather7°C (45°F)69 mm (2.7 inches)87%moderate
April Weather10°C (50°F)44 mm (1.7 inches)85%moderate
May Weather13°C (56°F)65 mm (2.5 inches)82%high
June Weather17°C (63°F)72 mm (2.8 inches)82%very high
July Weather18°C (65°F)68 mm (2.7 inches)80%very high
August Weather18°C (65°F)84 mm (3.3 inches)76%high
September Weather15°C (60°F)75 mm (3.0 inches)82%moderate
October Weather12°C (55°F)92 mm (3.6 inches)89%moderate
November Weather8°C (46°F)56 mm (2.2 inches)92%low
December Weather6°C (43°F)90 mm (3.5 inches)92%low

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