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September Weather in Wallerstein, Germany

Last updated: August 23, 2025

In September, the average temperature in Wallerstein, Germany hovers around 14°C (58°F). Expect a range from a chilly 2°C (36°F) to a warm 28°C (83°F). With 50 mm (2.0 in) of precipitation spread over 10 days, it's wise to carry an umbrella! The atmosphere tends to be quite humid, with an average humidity level of 85%, so prepare for a muggy feel during your stay.

September Temperature in Wallerstein

In September in Wallerstein, the average temperature is 14°C (58°F). The maximum can reach 28°C (83°F) and the minimum can be as low as 2°C (36°F). This makes it an ideal time for travelers looking to enjoy milder weather and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Wallerstein, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wallerstein, September typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec333641485565666658504036
Data source: Temperature data for Wallerstein 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 Wallerstein

In Wallerstein in September, the precipitation amount is 50 mm (2.0 in) over a span of 10 days.

September Precipitation Trends in Wallerstein

The chart displays monthly precipitation patterns in Wallerstein, 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 Wallerstein, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec67646738100107819250624999
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wallerstein

In Wallerstein in September, humidity is 85%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making even short walks feel heavy and exhausting for traveling.

September Average Humidity in Wallerstein

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

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

Maximum UV Index Levels in Wallerstein for September

The chart shows the monthly maximum UV Index (UVI) for Wallerstein 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 Wallerstein typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Wallerstein 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 Wallerstein Compares to Other Months

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

This table compares monthly weather conditions in Wallerstein, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)67 mm (2.6 inches)91%low
February Weather2°C (37°F)64 mm (2.5 inches)89%moderate
March Weather5°C (41°F)67 mm (2.6 inches)88%moderate
April Weather9°C (49°F)38 mm (1.5 inches)84%high
May Weather13°C (55°F)100 mm (3.9 inches)77%very high
June Weather18°C (65°F)107 mm (4.2 inches)82%very high
July Weather19°C (66°F)81 mm (3.2 inches)83%very high
August Weather19°C (66°F)92 mm (3.6 inches)84%very high
September Weather14°C (58°F)50 mm (2.0 inches)85%high
October Weather10°C (50°F)62 mm (2.4 inches)88%moderate
November Weather5°C (40°F)49 mm (1.9 inches)88%low
December Weather2°C (36°F)99 mm (3.9 inches)91%low

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