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September Weather in Hoornsterzwaag, Netherlands

Last updated: August 27, 2025

In September, the average temperature in Hoornsterzwaag, Netherlands hovers around 14°C (58°F). Expect a range that can dip to a cool 4°C (39°F) and soar up to a warm 30°C (87°F). While you enjoy the mild weather, be prepared for some rain, with an average precipitation of 70 mm (2.8 in) spread over 11 days. Don't forget your umbrella, as the average humidity is quite high at 83%!

September Temperature in Hoornsterzwaag

In September in Hoornsterzwaag, the average temperature is 14°C (58°F), with maximums reaching 30°C (87°F) and minimums dropping as low as 4°C (39°F). This makes it a great time for travelers to enjoy a range of outdoor activities while being prepared for varying weather conditions.

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

The chart illustrates September temperature patterns in Hoornsterzwaag, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hoornsterzwaag, September typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (87°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec393943485563646458534541
Data source: Temperature data for Hoornsterzwaag 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 Hoornsterzwaag

In Hoornsterzwaag in September, the precipitation amount is 70 mm (2.8 in) distributed over 11 days.

September Precipitation Trends in Hoornsterzwaag

The chart displays monthly precipitation patterns in Hoornsterzwaag, 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 Hoornsterzwaag, September typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec596572466979919770865079
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hoornsterzwaag

In Hoornsterzwaag in September, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.

September Average Humidity in Hoornsterzwaag

This chart illustrates the average monthly humidity levels in Hoornsterzwaag, 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 Hoornsterzwaag is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%86%84%80%75%75%75%83%86%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hoornsterzwaag

In Hoornsterzwaag 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 Hoornsterzwaag.

Maximum UV Index Levels in Hoornsterzwaag for September

The chart shows the monthly maximum UV Index (UVI) for Hoornsterzwaag 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 Hoornsterzwaag typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578775321
Data source: Hoornsterzwaag 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 Hoornsterzwaag Compares to Other Months

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

This table compares monthly weather conditions in Hoornsterzwaag, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)58 mm (2.3 inches)88%low
February Weather4°C (40°F)65 mm (2.5 inches)88%low
March Weather6°C (43°F)72 mm (2.8 inches)86%moderate
April Weather9°C (48°F)46 mm (1.8 inches)84%moderate
May Weather13°C (55°F)69 mm (2.7 inches)80%high
June Weather17°C (63°F)79 mm (3.1 inches)75%very high
July Weather18°C (64°F)91 mm (3.6 inches)75%high
August Weather18°C (65°F)97 mm (3.8 inches)75%high
September Weather14°C (58°F)70 mm (2.8 inches)83%moderate
October Weather12°C (53°F)86 mm (3.4 inches)86%moderate
November Weather7°C (45°F)50 mm (2.0 inches)87%low
December Weather5°C (41°F)79 mm (3.1 inches)86%low

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