nomadseason

September Weather in Grumbach, Germany

Last updated: August 23, 2025

In Grumbach, Germany, the average temperature in September hovers around 15°C (58°F). During this time, you can expect a minimum of 3°C (37°F) and a maximum reaching up to 30°C (87°F). With 48 mm (1.9 in) of precipitation spread across 7 days, don't forget your umbrella! Additionally, maintain your comfort with an average humidity of 83%.

September Temperature in Grumbach

In September in Grumbach, the average temperature is 15°C (58°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as 3°C (37°F). This makes Grumbach an ideal destination for travelers looking to enjoy mild weather with occasional warm days.

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

The chart illustrates September temperature patterns in Grumbach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grumbach, September typically has an average temperature of 15°C (58°F), with highs reaching up to 30°C (87°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec353842495564666658514138
Data source: Temperature data for Grumbach 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 Grumbach

In Grumbach in September, the total precipitation amount is 48 mm (1.9 in) over a span of 7 days.

September Precipitation Trends in Grumbach

The chart displays monthly precipitation patterns in Grumbach, 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 Grumbach, September typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec596170367074615648555396
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Grumbach

In Grumbach in September, humidity is 83%. With an average temperature of 15°C (58°F), this humidity feels like a warm blanket enveloping you, making outdoor activities sticky and uncomfortable for traveling.

September Average Humidity in Grumbach

This chart illustrates the average monthly humidity levels in Grumbach, 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 Grumbach is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Grumbach

In Grumbach 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 Grumbach, you can refer to this Hourly UV Index in Grumbach.

Maximum UV Index Levels in Grumbach for September

The chart shows the monthly maximum UV Index (UVI) for Grumbach 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 Grumbach typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689876421
Data source: Grumbach 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 Grumbach Compares to Other Months

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

This table compares monthly weather conditions in Grumbach, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)59 mm (2.3 inches)91%low
February Weather3°C (38°F)61 mm (2.4 inches)90%moderate
March Weather6°C (42°F)70 mm (2.8 inches)88%moderate
April Weather9°C (49°F)36 mm (1.4 inches)84%high
May Weather13°C (55°F)70 mm (2.8 inches)81%very high
June Weather18°C (64°F)74 mm (2.9 inches)82%very high
July Weather19°C (66°F)60 mm (2.4 inches)82%very high
August Weather19°C (66°F)56 mm (2.2 inches)80%high
September Weather15°C (58°F)48 mm (1.9 inches)83%high
October Weather10°C (51°F)55 mm (2.2 inches)89%moderate
November Weather5°C (41°F)53 mm (2.1 inches)91%low
December Weather3°C (38°F)96 mm (3.8 inches)93%low

Compare Grumbach's Climate with Cities Worldwide