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September Weather in Grimmen, Germany

Last updated: August 23, 2025

In Grimmen, Germany, the average temperature in September hovers around 15°C (59°F), with temperatures ranging from a cool 2°C (37°F) to a warm 31°C (87°F). Expect about 54 mm (2.1 in) of precipitation over 9 days, contributing to a notably high average humidity of 82%. Enjoy the blend of warmth and moisture that brings this season to life!

September Temperature in Grimmen

In September in Grimmen, the average temperature is 15°C (59°F). Maximum can reach 31°C (87°F), and the minimum can be as low as 2°C (37°F). Expect a pleasant range of temperatures, making it ideal for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Grimmen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grimmen, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (87°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec363740465464656559524338
Data source: Temperature data for Grimmen 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 Grimmen

In Grimmen in September, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.

September Precipitation Trends in Grimmen

The chart displays monthly precipitation patterns in Grimmen, 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 Grimmen, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec544461465959846854735054
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Grimmen

In Grimmen in September, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

September Average Humidity in Grimmen

This chart illustrates the average monthly humidity levels in Grimmen, 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 Grimmen is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%88%82%74%75%74%71%82%86%89%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Grimmen

In Grimmen 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 Grimmen.

Maximum UV Index Levels in Grimmen for September

The chart shows the monthly maximum UV Index (UVI) for Grimmen 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 Grimmen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568765321
Data source: Grimmen 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 Grimmen Compares to Other Months

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

This table compares monthly weather conditions in Grimmen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)54 mm (2.1 inches)91%low
February Weather3°C (37°F)43 mm (1.7 inches)90%low
March Weather4°C (40°F)60 mm (2.4 inches)88%moderate
April Weather8°C (46°F)46 mm (1.8 inches)82%moderate
May Weather12°C (55°F)59 mm (2.3 inches)74%high
June Weather18°C (64°F)59 mm (2.3 inches)75%very high
July Weather18°C (65°F)83 mm (3.3 inches)74%high
August Weather19°C (66°F)67 mm (2.7 inches)71%high
September Weather15°C (59°F)54 mm (2.1 inches)82%moderate
October Weather11°C (52°F)73 mm (2.9 inches)86%moderate
November Weather6°C (44°F)50 mm (2.0 inches)89%low
December Weather3°C (38°F)54 mm (2.1 inches)93%low

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