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September Weather in Groot-Ammers, Netherlands

Last updated: August 27, 2025

In September, the average temperature in Groot-Ammers, Netherlands is a comfortable 15°C (59°F), with a minimum of 3°C (37°F) and a maximum that can reach up to 31°C (88°F). Expect about 74 mm (2.9 in) of precipitation spread over 11 days, alongside an average humidity of a high 82%. Perfect for those who enjoy a mix of mild temperatures and a touch of rain!

September Temperature in Groot-Ammers

In September in Groot-Ammers, the average temperature is 15°C (59°F). Maximums can reach 31°C (88°F), and minimums can be as low as 3°C (37°F). This makes Groot-Ammers an ideal destination for travelers seeking mild weather with the potential for warm days and cool nights.

September Weather in Groot-Ammers: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Groot-Ammers, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Groot-Ammers, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec404144495664656559544542
Data source: Temperature data for Groot-Ammers 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 Groot-Ammers

In Groot-Ammers in September, the precipitation amount is 74 mm (2.9 in) spread over the course of 11 days.

September Precipitation Trends in Groot-Ammers

The chart displays monthly precipitation patterns in Groot-Ammers, 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 Groot-Ammers, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec576871467079728474885388
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Groot-Ammers

In Groot-Ammers in September, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

September Average Humidity in Groot-Ammers

This chart illustrates the average monthly humidity levels in Groot-Ammers, 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 Groot-Ammers 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 Groot-Ammers

In Groot-Ammers 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 Groot-Ammers.

Maximum UV Index Levels in Groot-Ammers for September

The chart shows the monthly maximum UV Index (UVI) for Groot-Ammers 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 Groot-Ammers typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Groot-Ammers 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 Groot-Ammers Compares to Other Months

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

This table compares monthly weather conditions in Groot-Ammers, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)57 mm (2.2 inches)91%low
February Weather5°C (41°F)68 mm (2.7 inches)89%low
March Weather7°C (45°F)71 mm (2.8 inches)87%moderate
April Weather10°C (50°F)46 mm (1.8 inches)85%moderate
May Weather13°C (56°F)70 mm (2.8 inches)82%high
June Weather18°C (64°F)79 mm (3.1 inches)82%very high
July Weather18°C (65°F)72 mm (2.8 inches)80%very high
August Weather18°C (65°F)84 mm (3.3 inches)76%high
September Weather15°C (59°F)74 mm (2.9 inches)82%moderate
October Weather12°C (54°F)88 mm (3.5 inches)89%moderate
November Weather7°C (46°F)53 mm (2.1 inches)92%low
December Weather6°C (42°F)88 mm (3.5 inches)92%low

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