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September Weather in Giesen, Germany

Last updated: August 23, 2025

In Giesen, Germany, the average temperature in September hovers around 15°C (59°F), with fluctuations that can see lows of 1°C (34°F) and highs reaching up to 32°C (90°F). Expect 59 mm (2.3 in) of precipitation spread over about 10 days throughout the month, accompanied by an average humidity of 81%. Perfect for cozying up or exploring the lush surroundings!

September Temperature in Giesen

In September in Giesen, the average temperature is 15°C (59°F). Maximums can reach 32°C (90°F) and minimums can drop as low as 1°C (34°F). This diverse weather makes Giesen an exciting destination for travelers looking to experience a mix of warmth and cooler temperatures.

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

The chart illustrates September temperature patterns in Giesen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Giesen, September typically has an average temperature of 15°C (59°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec373842485665666759534439
Data source: Temperature data for Giesen 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 Giesen

In Giesen in September, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

September Precipitation Trends in Giesen

The chart displays monthly precipitation patterns in Giesen, 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 Giesen, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec586064446368816759714469
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Giesen

In Giesen in September humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.

September Average Humidity in Giesen

This chart illustrates the average monthly humidity levels in Giesen, 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 Giesen is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%82%73%66%66%67%81%86%90%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Giesen

In Giesen 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 Giesen.

Maximum UV Index Levels in Giesen for September

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

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

This table compares monthly weather conditions in Giesen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)58 mm (2.3 inches)91%low
February Weather3°C (39°F)59 mm (2.3 inches)89%low
March Weather6°C (42°F)63 mm (2.5 inches)87%moderate
April Weather9°C (49°F)44 mm (1.7 inches)82%moderate
May Weather13°C (56°F)63 mm (2.5 inches)73%high
June Weather18°C (65°F)68 mm (2.7 inches)66%very high
July Weather19°C (66°F)81 mm (3.2 inches)66%high
August Weather19°C (67°F)67 mm (2.6 inches)67%high
September Weather15°C (59°F)59 mm (2.3 inches)81%moderate
October Weather12°C (53°F)71 mm (2.8 inches)86%moderate
November Weather7°C (44°F)44 mm (1.7 inches)90%low
December Weather4°C (40°F)69 mm (2.7 inches)90%low

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