nomadseason

September Weather in Frederikssund, Denmark

Last updated: August 23, 2025

In Frederikssund, Denmark, the average temperature in September hovers around 14°C (58°F). Expect a range that can dip to a cool 3°C (37°F) and peak at a warm 27°C (80°F). During this month, you can anticipate 75 mm (3.0 in) of precipitation spread over 12 days, with an average humidity level of 83%. Stay prepared for a mix of mild weather!

September Temperature in Frederikssund

In September in Frederikssund, the average temperature is 14°C (58°F), with maximums reaching up to 27°C (80°F) and minimums dropping as low as 3°C (37°F). Travelers should pack layers to comfortably enjoy a range of temperatures while exploring.

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

The chart illustrates September temperature patterns in Frederikssund, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Frederikssund, September typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (80°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec373639455363646458514438
Data source: Temperature data for Frederikssund generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Frederikssund

In Frederikssund in September, the precipitation amount is 75 mm (3.0 in) over the course of 12 days.

September Precipitation Trends in Frederikssund

The chart displays monthly precipitation patterns in Frederikssund, 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 Frederikssund, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec474559375749768675753754
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Frederikssund

In Frederikssund 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 Frederikssund

This chart illustrates the average monthly humidity levels in Frederikssund, 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 Frederikssund is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%85%80%77%77%77%84%87%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Frederikssund

In Frederikssund 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 Frederikssund.

Maximum UV Index Levels in Frederikssund for September

The chart shows the monthly maximum UV Index (UVI) for Frederikssund 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 Frederikssund typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568765311
Data source: Frederikssund 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 Frederikssund Compares to Other Months

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

This table compares monthly weather conditions in Frederikssund, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)47 mm (1.8 inches)90%low
February Weather2°C (37°F)45 mm (1.8 inches)89%low
March Weather4°C (39°F)59 mm (2.3 inches)88%moderate
April Weather7°C (45°F)37 mm (1.5 inches)85%moderate
May Weather12°C (53°F)56 mm (2.2 inches)80%high
June Weather17°C (63°F)49 mm (1.9 inches)77%very high
July Weather18°C (64°F)76 mm (3.0 inches)77%high
August Weather18°C (64°F)86 mm (3.4 inches)77%high
September Weather14°C (58°F)75 mm (3.0 inches)83%moderate
October Weather11°C (51°F)75 mm (3.0 inches)87%moderate
November Weather7°C (44°F)37 mm (1.5 inches)89%low
December Weather4°C (39°F)54 mm (2.1 inches)88%low

Compare Frederikssund's Climate with Cities Worldwide