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September Weather in Hartenstein, Germany

Last updated: August 23, 2025

In September, the average temperature in Hartenstein, Germany hovers around 14°C (58°F). Expect a minimum of 1°C (35°F) and a comfortable maximum of 29°C (85°F). With an average humidity of 85%, you'll likely feel a touch of moisture in the air. Be prepared for some rain, as 59 mm (2.3 in) of precipitation typically falls over 9 days during this month.

September Temperature in Hartenstein

In September in Hartenstein, the average temperature is 14°C (58°F). The maximum can reach 29°C (85°F), while the minimum can drop as low as 1°C (35°F). This varied climate makes Hartenstein an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates September temperature patterns in Hartenstein, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartenstein, September typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec323640485565666658504035
Data source: Temperature data for Hartenstein 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 Hartenstein

In Hartenstein in September, the precipitation amount is 59 mm (2.3 in) over the course of 9 days.

September Precipitation Trends in Hartenstein

The chart displays monthly precipitation patterns in Hartenstein, 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 Hartenstein, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7567764194887988596652108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hartenstein

In Hartenstein 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 Hartenstein

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

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

Maximum UV Index Levels in Hartenstein for September

The chart shows the monthly maximum UV Index (UVI) for Hartenstein 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 Hartenstein typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235688876421
Data source: Hartenstein 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 Hartenstein Compares to Other Months

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

This table compares monthly weather conditions in Hartenstein, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)75 mm (2.9 inches)91%low
February Weather2°C (36°F)66 mm (2.6 inches)89%moderate
March Weather5°C (41°F)76 mm (3.0 inches)88%moderate
April Weather9°C (48°F)41 mm (1.6 inches)84%high
May Weather13°C (55°F)94 mm (3.7 inches)77%very high
June Weather18°C (65°F)88 mm (3.5 inches)82%very high
July Weather19°C (66°F)79 mm (3.1 inches)83%very high
August Weather19°C (66°F)88 mm (3.5 inches)84%high
September Weather14°C (58°F)59 mm (2.3 inches)85%high
October Weather10°C (50°F)66 mm (2.6 inches)88%moderate
November Weather4°C (40°F)52 mm (2.0 inches)88%low
December Weather2°C (35°F)108 mm (4.2 inches)91%low

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