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September Weather in Irndorf, Germany

Last updated: August 23, 2025

In Irndorf, Germany, the average temperature in September hovers around 14°C (57°F). Expect a minimum of 0°C (33°F) and a maximum of 28°C (83°F), making for a varied climate. During this month, you can anticipate 75 mm (2.9 in) of precipitation spread over approximately 11 days, with an average humidity of 83%. Stay prepared for both the chill and the occasional downpour!

September Temperature in Irndorf

In September in Irndorf, 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 Irndorf: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Irndorf, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Irndorf, 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 Irndorf 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 Irndorf

In Irndorf in September, the precipitation amount is 75 mm (2.9 in) over the course of 11 days.

September Precipitation Trends in Irndorf

The chart displays monthly precipitation patterns in Irndorf, 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 Irndorf, September typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec746472561211299512075785497
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Irndorf

In Irndorf 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 Irndorf

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

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

Maximum UV Index Levels in Irndorf for September

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

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

This table compares monthly weather conditions in Irndorf, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)74 mm (2.9 inches)92%low
February Weather2°C (36°F)64 mm (2.5 inches)89%moderate
March Weather5°C (41°F)71 mm (2.8 inches)87%moderate
April Weather9°C (48°F)56 mm (2.2 inches)84%high
May Weather12°C (54°F)121 mm (4.8 inches)80%very high
June Weather17°C (63°F)129 mm (5.1 inches)82%very high
July Weather18°C (65°F)95 mm (3.7 inches)83%very high
August Weather18°C (65°F)120 mm (4.7 inches)80%very high
September Weather14°C (57°F)75 mm (2.9 inches)83%high
October Weather9°C (49°F)78 mm (3.1 inches)90%moderate
November Weather4°C (39°F)54 mm (2.1 inches)88%low
December Weather1°C (35°F)97 mm (3.8 inches)90%low

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