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September Weather in Barnau, Germany

Last updated: August 23, 2025

In September, the average temperature in Barnau, Germany is a cool 13°C (56°F), with lows dipping to 0°C (32°F) and highs reaching up to 28°C (83°F). Expect some moisture, as precipitation usually amounts to 63 mm (2.5 in) over about 10 days, and the air carries an average humidity of about 85%. Stay prepared for a blend of chilly breezes and occasional rain during your visit!

September Temperature in Barnau

In September in Barnau, the average temperature is 13°C (56°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as 0°C (32°F). This diverse temperature range makes Barnau a great destination for travelers looking to experience both warmth and the crispness of cooler weather.

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

The chart illustrates September temperature patterns in Barnau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Barnau, September typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (83°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec303338465363646456483833
Data source: Temperature data for Barnau 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 Barnau

In Barnau in September, the precipitation amount is 63 mm (2.5 in) over a span of 10 days.

September Precipitation Trends in Barnau

The chart displays monthly precipitation patterns in Barnau, 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 Barnau, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec636072409987828763614387
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Barnau

In Barnau in September humidity is 85%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that wraps around you, making outdoor activities feel heavier and less enjoyable, as layers of clothing cling to the skin and breath becomes visible in the moist air.

September Average Humidity in Barnau

This chart illustrates the average monthly humidity levels in Barnau, 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 Barnau is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%88%84%77%82%83%84%85%88%88%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Barnau

In Barnau in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Barnau, you can refer to this Hourly UV Index in Barnau.

Maximum UV Index Levels in Barnau for September

The chart shows the monthly maximum UV Index (UVI) for Barnau 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 Barnau typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689876421
Data source: Barnau 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 Barnau Compares to Other Months

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

This table compares monthly weather conditions in Barnau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)63 mm (2.5 inches)91%low
February Weather0°C (33°F)60 mm (2.4 inches)89%moderate
March Weather3°C (39°F)72 mm (2.8 inches)88%moderate
April Weather8°C (46°F)40 mm (1.6 inches)84%high
May Weather12°C (54°F)99 mm (3.9 inches)77%very high
June Weather17°C (63°F)87 mm (3.4 inches)82%very high
July Weather18°C (64°F)82 mm (3.2 inches)83%very high
August Weather18°C (64°F)87 mm (3.4 inches)84%high
September Weather13°C (56°F)63 mm (2.5 inches)85%high
October Weather9°C (48°F)61 mm (2.4 inches)88%moderate
November Weather3°C (38°F)43 mm (1.7 inches)88%low
December Weather1°C (33°F)87 mm (3.4 inches)91%low

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