September Weather in Frechen, Germany

Last updated: August 23, 2025

In Frechen, Germany, the average temperature in September hovers around 16°C (61°F), with a minimum dipping to 2°C (36°F) and a maximum soaring to 35°C (94°F). Visitors should be prepared for 57 mm (2.2 in) of precipitation, spread across about 10 days. The atmosphere is often moist, with an average humidity of 81%, making it a unique experience for all.

September Temperature in Frechen

In September in Frechen, the average temperature is 16°C (61°F). Maximum temperatures can reach 35°C (94°F), while minimums can drop to as low as 2°C (36°F). Pack accordingly to enjoy a range of weather during your travels!

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

The chart illustrates September temperature patterns in Frechen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Frechen, September typically has an average temperature of 16°C (61°F), with highs reaching up to 35°C (94°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec394145515766686861544541
Data source: Temperature data for Frechen 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 Frechen

In Frechen in September, the precipitation amount is 57 mm (2.2 in) over a span of 10 days.

September Precipitation Trends in Frechen

The chart displays monthly precipitation patterns in Frechen, 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 Frechen, September typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7470743560578969578159103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Frechen

In Frechen in September, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

September Average Humidity in Frechen

This chart illustrates the average monthly humidity levels in Frechen, 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 Frechen is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Frechen

In Frechen 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 Frechen.

Maximum UV Index Levels in Frechen for September

The chart shows the monthly maximum UV Index (UVI) for Frechen 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 Frechen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Frechen 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 Frechen Compares to Other Months

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

This table compares monthly weather conditions in Frechen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)74 mm (2.9 inches)91%low
February Weather5°C (41°F)70 mm (2.8 inches)90%low
March Weather7°C (45°F)74 mm (2.9 inches)87%moderate
April Weather10°C (51°F)35 mm (1.4 inches)84%moderate
May Weather14°C (58°F)60 mm (2.4 inches)77%high
June Weather19°C (67°F)57 mm (2.3 inches)74%very high
July Weather20°C (68°F)89 mm (3.5 inches)72%very high
August Weather20°C (68°F)69 mm (2.7 inches)71%high
September Weather16°C (61°F)57 mm (2.2 inches)81%moderate
October Weather12°C (54°F)81 mm (3.2 inches)88%moderate
November Weather7°C (45°F)59 mm (2.3 inches)91%low
December Weather5°C (42°F)103 mm (4.1 inches)92%low

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