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September Weather in Bad Heilbrunn, Germany

Last updated: August 23, 2025

The average temperature in Bad Heilbrunn, Germany during September is a mild 13°C (56°F). Expect a minimum temperature of 0°C (33°F) and a maximum reaching 26°C (80°F). With precipitation amounting to 134 mm (5.3 in) over 15 days, be prepared for some rain. Additionally, the atmosphere is quite humid, with an average humidity of 83%.

September Temperature in Bad Heilbrunn

In September in Bad Heilbrunn, the average temperature is 13°C (56°F). The maximum can reach 26°C (80°F), while the minimum can be as low as 0°C (33°F). It's advisable to pack layers and prepare for both warm days and cooler nights while traveling.

September Weather in Bad Heilbrunn: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bad Heilbrunn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bad Heilbrunn, September typically has an average temperature of 13°C (56°F), with highs reaching up to 26°C (80°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec303438465262636355483933
Data source: Temperature data for Bad Heilbrunn 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 Bad Heilbrunn

In Bad Heilbrunn in September, the total precipitation amount is 134 mm (5.3 in) spread over a period of 15 days.

September Precipitation Trends in Bad Heilbrunn

The chart displays monthly precipitation patterns in Bad Heilbrunn, 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 Bad Heilbrunn, September typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec10491948719517120218513411370124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bad Heilbrunn

In Bad Heilbrunn in September humidity is 83%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making travel a bit uncomfortable as the air feels heavy and the moisture clings to your skin.

September Average Humidity in Bad Heilbrunn

This chart illustrates the average monthly humidity levels in Bad Heilbrunn, 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 Bad Heilbrunn is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bad Heilbrunn

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

Maximum UV Index Levels in Bad Heilbrunn for September

The chart shows the monthly maximum UV Index (UVI) for Bad Heilbrunn 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 Bad Heilbrunn typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789986432
Data source: Bad Heilbrunn 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 Bad Heilbrunn Compares to Other Months

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

This table compares monthly weather conditions in Bad Heilbrunn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)103 mm (4.1 inches)93%low
February Weather1°C (34°F)91 mm (3.6 inches)89%moderate
March Weather3°C (39°F)94 mm (3.7 inches)86%moderate
April Weather8°C (46°F)87 mm (3.4 inches)83%high
May Weather11°C (53°F)194 mm (7.7 inches)78%very high
June Weather17°C (62°F)171 mm (6.7 inches)79%very high
July Weather17°C (63°F)202 mm (7.9 inches)82%very high
August Weather17°C (63°F)185 mm (7.3 inches)80%very high
September Weather13°C (56°F)134 mm (5.3 inches)83%high
October Weather9°C (49°F)113 mm (4.4 inches)90%moderate
November Weather4°C (39°F)70 mm (2.8 inches)89%moderate
December Weather0°C (33°F)124 mm (4.9 inches)90%low

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