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September Weather in Denmark, United States

Last updated: June 24, 2025

In Denmark, United States, the average temperature in September hovers around 17°C (63°F). During this time, you can expect temperatures to range from a cool 2°C (35°F) to a warm 31°C (89°F). With an average precipitation of 60 mm (2.4 in) spread over 8 days, and humidity levels around 71%, it's wise to prepare for a mix of weather throughout the month!

September Temperature in Denmark

In September in Denmark, the average temperature is 17°C (63°F). Maximums can reach 31°C (89°F) and minimums can be as low as 2°C (35°F). This ideal climate makes Denmark a perfect destination for travelers seeking both warmth and cooler breezes.

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

The chart illustrates September temperature patterns in Denmark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Denmark, September typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (89°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec222431435566717063513727
Data source: Temperature data for Denmark 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 Denmark

In Denmark in September, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

September Precipitation Trends in Denmark

The chart displays monthly precipitation patterns in Denmark, 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 Denmark, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec81887312578831368160122107114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Denmark

In Denmark in September, humidity is 71%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet a bit sticky, so travelers should stay hydrated and take breaks in the shade.

September Average Humidity in Denmark

This chart illustrates the average monthly humidity levels in Denmark, 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 Denmark is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Denmark

In Denmark in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Denmark.

Maximum UV Index Levels in Denmark for September

The chart shows the monthly maximum UV Index (UVI) for Denmark 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 Denmark typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Denmark 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 Denmark Compares to Other Months

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

This table compares monthly weather conditions in Denmark, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)81 mm (3.2 inches)86%low
February Weather-4°C (24°F)88 mm (3.5 inches)84%moderate
March Weather0°C (31°F)73 mm (2.9 inches)82%moderate
April Weather6°C (44°F)125 mm (4.9 inches)80%very high
May Weather13°C (55°F)78 mm (3.1 inches)72%very high
June Weather19°C (66°F)83 mm (3.3 inches)72%very high
July Weather22°C (71°F)136 mm (5.4 inches)67%very high
August Weather21°C (70°F)81 mm (3.2 inches)66%very high
September Weather17°C (63°F)60 mm (2.4 inches)71%high
October Weather11°C (51°F)122 mm (4.8 inches)78%moderate
November Weather3°C (37°F)107 mm (4.2 inches)84%moderate
December Weather-3°C (27°F)114 mm (4.5 inches)81%low

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