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September Weather in Westerland, Netherlands

Last updated: August 27, 2025

In September, the average temperature in Westerland, Netherlands hovers around 16°C (61°F), with a pleasant minimum of 12°C (54°F) and a comfortable maximum of 23°C (75°F). Expect about 96 mm (3.8 in) of precipitation spread over 12 days, contributing to an average humidity of 83%. Whether you're exploring the city or relaxing outdoors, be prepared for a refreshing atmosphere!

September Temperature in Westerland

In September in Westerland, the average temperature is 16°C (61°F). The maximum can reach 23°C (75°F), while the minimum can be as low as 12°C (54°F). This mild weather makes Westerland a great destination for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Westerland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westerland, September typically has an average temperature of 16°C (61°F), with highs reaching up to 23°C (75°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec424143485461646661564844
Data source: Temperature data for Westerland 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 Westerland

In Westerland in September, the precipitation amount is 96 mm (3.8 in) spread over a duration of 12 days.

September Precipitation Trends in Westerland

The chart displays monthly precipitation patterns in Westerland, 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 Westerland, September typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec667269354977831139611667106
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Westerland

In Westerland in September, humidity is 83%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy blanket wrapping around you, making travel a bit sticky and potentially uncomfortable as you navigate through the sights.

September Average Humidity in Westerland

This chart illustrates the average monthly humidity levels in Westerland, 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 Westerland is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%85%84%82%80%78%83%86%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Westerland

In Westerland 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 Westerland.

Maximum UV Index Levels in Westerland for September

The chart shows the monthly maximum UV Index (UVI) for Westerland 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 Westerland typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578875321
Data source: Westerland 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 Westerland Compares to Other Months

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

This table compares monthly weather conditions in Westerland, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)66 mm (2.6 inches)87%low
February Weather5°C (41°F)72 mm (2.8 inches)87%low
March Weather6°C (43°F)69 mm (2.7 inches)86%moderate
April Weather9°C (48°F)35 mm (1.4 inches)85%moderate
May Weather12°C (54°F)49 mm (1.9 inches)84%high
June Weather16°C (62°F)77 mm (3.0 inches)81%very high
July Weather18°C (64°F)83 mm (3.2 inches)80%very high
August Weather19°C (66°F)113 mm (4.4 inches)78%high
September Weather16°C (61°F)96 mm (3.8 inches)83%moderate
October Weather13°C (56°F)116 mm (4.6 inches)86%moderate
November Weather9°C (49°F)67 mm (2.6 inches)87%low
December Weather7°C (44°F)106 mm (4.2 inches)86%low

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