nomadseason

September Weather in Heiden, Germany

Last updated: August 23, 2025

In Heiden, Germany, the average temperature in September hovers around 15°C (60°F), with daily extremes ranging from a chilly 2°C (36°F) to a warm 32°C (90°F). Visitors can expect 62 mm (2.4 in) of precipitation over approximately 10 days, contributing to a notably high average humidity of 81%. Whether you're looking for a refreshing escape or enjoying the lush surroundings, this month offers a unique atmosphere to experience!

September Temperature in Heiden

In September in Heiden, the average temperature is 15°C (60°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 2°C (36°F). Travelers should pack accordingly to enjoy both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Heiden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heiden, September typically has an average temperature of 15°C (60°F), with highs reaching up to 32°C (90°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec394044505766666659544541
Data source: Temperature data for Heiden 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 Heiden

In Heiden in September, the total precipitation amount is 62 mm (2.4 in) over a period of 10 days.

September Precipitation Trends in Heiden

The chart displays monthly precipitation patterns in Heiden, 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 Heiden, September typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec738176356059837162925599
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Heiden

In Heiden in September, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

September Average Humidity in Heiden

This chart illustrates the average monthly humidity levels in Heiden, 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 Heiden is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heiden

In Heiden in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Heiden.

Maximum UV Index Levels in Heiden for September

The chart shows the monthly maximum UV Index (UVI) for Heiden 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 Heiden typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Heiden 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 Heiden Compares to Other Months

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

This table compares monthly weather conditions in Heiden, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)73 mm (2.9 inches)91%low
February Weather5°C (41°F)81 mm (3.2 inches)90%low
March Weather7°C (45°F)76 mm (3.0 inches)87%moderate
April Weather10°C (50°F)35 mm (1.4 inches)84%moderate
May Weather14°C (57°F)60 mm (2.4 inches)77%high
June Weather19°C (66°F)59 mm (2.3 inches)74%very high
July Weather19°C (67°F)83 mm (3.3 inches)72%very high
August Weather19°C (67°F)71 mm (2.8 inches)71%high
September Weather15°C (60°F)62 mm (2.4 inches)81%moderate
October Weather12°C (54°F)92 mm (3.6 inches)88%moderate
November Weather7°C (45°F)55 mm (2.1 inches)91%low
December Weather5°C (41°F)99 mm (3.9 inches)92%low

Compare Heiden's Climate with Cities Worldwide