nomadseason

September Weather in Bonstetten, Germany

Last updated: August 23, 2025

In Bonstetten, Germany, the average temperature in September hovers around 15°C (59°F). However, be prepared for a climate that can range from a chilly 1°C (35°F) to a warm 29°C (85°F). Expect about 60 mm (2.4 in) of precipitation spread over 11 days, accompanied by a high average humidity of 85%.

September Temperature in Bonstetten

In September in Bonstetten, the average temperature is 15°C (59°F). The maximum can reach 29°C (85°F), and the minimum can be as low as 1°C (35°F). This makes it a perfect time for travelers to enjoy a mix of warm sunny days and cooler nights, so pack accordingly!

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

The chart illustrates September temperature patterns in Bonstetten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bonstetten, September typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec343742495665676758504036
Data source: Temperature data for Bonstetten generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Bonstetten

In Bonstetten in September, the precipitation amount is 60 mm (2.4 in) over the course of 11 days.

September Precipitation Trends in Bonstetten

The chart displays monthly precipitation patterns in Bonstetten, 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 Bonstetten, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec666359341101129110461644493
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Bonstetten

In Bonstetten in September, humidity is 85%. With an average temperature of 15°C (59°F), this humidity feels like a warm, damp blanket wrapping around you, making traveling quite uncomfortable and sticky. Be prepared to take frequent breaks and stay hydrated as you navigate the lush, but humid environment.

September Average Humidity in Bonstetten

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

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

Maximum UV Index Levels in Bonstetten for September

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

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

This table compares monthly weather conditions in Bonstetten, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)66 mm (2.6 inches)91%low
February Weather3°C (38°F)62 mm (2.5 inches)89%moderate
March Weather5°C (42°F)59 mm (2.3 inches)88%moderate
April Weather10°C (49°F)34 mm (1.4 inches)84%high
May Weather13°C (56°F)110 mm (4.3 inches)77%very high
June Weather18°C (65°F)112 mm (4.4 inches)82%very high
July Weather19°C (67°F)91 mm (3.6 inches)83%very high
August Weather19°C (67°F)104 mm (4.1 inches)84%very high
September Weather15°C (59°F)60 mm (2.4 inches)85%high
October Weather10°C (51°F)64 mm (2.5 inches)88%moderate
November Weather5°C (40°F)44 mm (1.7 inches)88%low
December Weather2°C (36°F)93 mm (3.7 inches)91%low

Compare Bonstetten's Climate with Cities Worldwide