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September Weather in Rietheim-Weilheim, Germany

Last updated: August 23, 2025

In September, the average temperature in Rietheim-Weilheim, Germany is a mild 14°C (57°F). Expect temperatures to fluctuate between a cool 0°C (33°F) at their lowest and a warm 28°C (83°F) at their peak. The area receives an average of 67 mm (2.6 in) of precipitation spread over about 12 days, contributing to a relatively high average humidity of 83%.

September Temperature in Rietheim-Weilheim

In September in Rietheim-Weilheim, the average temperature is 14°C (57°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as 0°C (33°F). Be sure to pack layers to enjoy your travels comfortably in this variable climate!

September Weather in Rietheim-Weilheim: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rietheim-Weilheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rietheim-Weilheim, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (83°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec323640485463656557493935
Data source: Temperature data for Rietheim-Weilheim 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 Rietheim-Weilheim

In Rietheim-Weilheim in September, the precipitation amount is 67 mm (2.6 in) distributed over 12 days.

September Precipitation Trends in Rietheim-Weilheim

The chart displays monthly precipitation patterns in Rietheim-Weilheim, 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 Rietheim-Weilheim, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec8067765411511786108677655103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rietheim-Weilheim

In Rietheim-Weilheim in September, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.

September Average Humidity in Rietheim-Weilheim

This chart illustrates the average monthly humidity levels in Rietheim-Weilheim, 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 Rietheim-Weilheim is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rietheim-Weilheim

In Rietheim-Weilheim 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 Rietheim-Weilheim, you can refer to this Hourly UV Index in Rietheim-Weilheim.

Maximum UV Index Levels in Rietheim-Weilheim for September

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

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

This table compares monthly weather conditions in Rietheim-Weilheim, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)80 mm (3.2 inches)92%low
February Weather2°C (36°F)67 mm (2.6 inches)89%moderate
March Weather5°C (41°F)76 mm (3.0 inches)87%moderate
April Weather9°C (48°F)54 mm (2.1 inches)84%high
May Weather12°C (54°F)115 mm (4.5 inches)80%very high
June Weather17°C (63°F)117 mm (4.6 inches)82%very high
July Weather19°C (66°F)86 mm (3.4 inches)83%very high
August Weather18°C (65°F)108 mm (4.3 inches)80%very high
September Weather14°C (57°F)67 mm (2.6 inches)83%high
October Weather9°C (49°F)76 mm (3.0 inches)90%moderate
November Weather4°C (39°F)55 mm (2.2 inches)88%low
December Weather2°C (35°F)103 mm (4.1 inches)90%low

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