nomadseason

September Weather in Mermuth, Germany

Last updated: August 23, 2025

In September, the average temperature in Mermuth, Germany hovers around 15°C (59°F), with a minimum dip to 3°C (37°F) and occasional peaks of up to 31°C (88°F). Expect 47 mm (1.8 in) of precipitation over 7 days, accompanied by an average humidity of 81%. Stay prepared for the varying weather conditions!

September Temperature in Mermuth

In September in Mermuth, the average temperature is 15°C (59°F). Maximums can reach 31°C (88°F), and minimums can be as low as 3°C (37°F). This makes Mermuth an ideal destination for travelers seeking mild weather with the potential for warm days and cool nights.

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

The chart illustrates September temperature patterns in Mermuth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mermuth, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec363842495564666658514239
Data source: Temperature data for Mermuth generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mermuth

In Mermuth in September, the precipitation amount is 47 mm (1.8 in) during a span of 7 days.

September Precipitation Trends in Mermuth

The chart displays monthly precipitation patterns in Mermuth, 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 Mermuth, September typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec605565376672676247554689
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Mermuth

In Mermuth 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 Mermuth

This chart illustrates the average monthly humidity levels in Mermuth, 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 Mermuth 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 Mermuth

In Mermuth 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 Mermuth.

Maximum UV Index Levels in Mermuth for September

The chart shows the monthly maximum UV Index (UVI) for Mermuth 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 Mermuth typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Mermuth 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 Mermuth Compares to Other Months

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

This table compares monthly weather conditions in Mermuth, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)60 mm (2.4 inches)91%low
February Weather3°C (39°F)55 mm (2.2 inches)90%moderate
March Weather6°C (43°F)65 mm (2.6 inches)87%moderate
April Weather9°C (49°F)37 mm (1.4 inches)84%moderate
May Weather13°C (56°F)66 mm (2.6 inches)77%high
June Weather18°C (65°F)72 mm (2.8 inches)74%very high
July Weather19°C (66°F)67 mm (2.6 inches)72%very high
August Weather19°C (66°F)62 mm (2.5 inches)71%high
September Weather15°C (59°F)47 mm (1.8 inches)81%moderate
October Weather11°C (52°F)55 mm (2.2 inches)88%moderate
November Weather6°C (42°F)46 mm (1.8 inches)91%low
December Weather4°C (39°F)89 mm (3.5 inches)92%low

Compare Mermuth's Climate with Cities Worldwide