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September Weather in Demen, Germany

Last updated: August 23, 2025

In September, the average temperature in Demen, Germany hovers around 15°C (58°F), offering a pleasant climate. However, be prepared for variable temperatures, with minimums dipping to 4°C (39°F) and maximums soaring to 30°C (86°F). Expect some moisture as well, with around 51 mm (2.0 in) of precipitation spread over 9 days. Don't forget to factor in the average humidity of 82%, which can make the air feel quite rich!

September Temperature in Demen

In September in Demen, the average temperature is 15°C (58°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 4°C (39°F). It's a great time to explore Demen, as the weather offers a pleasant mix of warmth and cooler moments.

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

The chart illustrates September temperature patterns in Demen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Demen, September typically has an average temperature of 15°C (58°F), with highs reaching up to 30°C (86°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec373740475564646558524338
Data source: Temperature data for Demen 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 Demen

In Demen in September, the total precipitation amount is 51 mm (2.0 in) spread over 9 days.

September Precipitation Trends in Demen

The chart displays monthly precipitation patterns in Demen, 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 Demen, September typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec574463445269906951704560
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Demen

In Demen in September humidity is 82%. With an average temperature of 15°C (58°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor exploration a bit uncomfortable and causing you to sweat lightly even during mild activities.

September Average Humidity in Demen

This chart illustrates the average monthly humidity levels in Demen, 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 Demen is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%83%78%77%77%75%82%86%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Demen

In Demen 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 Demen.

Maximum UV Index Levels in Demen for September

The chart shows the monthly maximum UV Index (UVI) for Demen 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 Demen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578775321
Data source: Demen 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 Demen Compares to Other Months

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

This table compares monthly weather conditions in Demen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)57 mm (2.2 inches)91%low
February Weather3°C (37°F)44 mm (1.7 inches)89%low
March Weather5°C (40°F)62 mm (2.5 inches)87%moderate
April Weather8°C (47°F)44 mm (1.7 inches)83%moderate
May Weather13°C (55°F)52 mm (2.0 inches)78%high
June Weather18°C (64°F)69 mm (2.7 inches)77%very high
July Weather18°C (65°F)90 mm (3.6 inches)77%high
August Weather18°C (66°F)69 mm (2.7 inches)75%high
September Weather15°C (58°F)51 mm (2.0 inches)82%moderate
October Weather11°C (52°F)70 mm (2.8 inches)86%moderate
November Weather6°C (44°F)45 mm (1.8 inches)89%low
December Weather3°C (38°F)60 mm (2.3 inches)92%low

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