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September Weather in Mehrn, Austria

Last updated: August 22, 2025

In September, the average temperature in Mehrn, Austria hovers around 11°C (53°F). Expect a range from a chilly -4°C (26°F) to a pleasant 25°C (77°F). Be prepared for some rain, with 166 mm (6.5 in) of precipitation spread over 17 days. With an average humidity of 83%, it's a perfect time to experience the unique climate of this remarkable location!

September Temperature in Mehrn

In September in Mehrn, the average temperature is 11°C (53°F). Maximums can reach 25°C (77°F) and minimums can be as low as -4°C (26°F). Be prepared for a range of weather conditions if you plan to travel during this time.

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

The chart illustrates September temperature patterns in Mehrn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mehrn, September typically has an average temperature of 11°C (53°F), with highs reaching up to 25°C (77°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec252934434959596052463628
Data source: Temperature data for Mehrn 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 Mehrn

In Mehrn in September, the precipitation amount is 166 mm (6.5 in) over a span of 17 days.

September Precipitation Trends in Mehrn

The chart displays monthly precipitation patterns in Mehrn, 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 Mehrn, September typically receives around 166 mm (6.5 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1159911110622820323023216613692145
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mehrn

In Mehrn in September, humidity is 83%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and causing an inevitable sheen of sweat to form, which can dampen the joy of exploring your surroundings.

September Average Humidity in Mehrn

This chart illustrates the average monthly humidity levels in Mehrn, 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 Mehrn is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mehrn

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

Maximum UV Index Levels in Mehrn for September

The chart shows the monthly maximum UV Index (UVI) for Mehrn 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 Mehrn typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Mehrn 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 Mehrn Compares to Other Months

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

This table compares monthly weather conditions in Mehrn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)115 mm (4.5 inches)93%low
February Weather-1°C (30°F)99 mm (3.9 inches)89%moderate
March Weather1°C (35°F)111 mm (4.4 inches)86%moderate
April Weather6°C (43°F)106 mm (4.2 inches)83%high
May Weather9°C (49°F)228 mm (9.0 inches)78%very high
June Weather15°C (59°F)203 mm (8.0 inches)79%very high
July Weather15°C (60°F)230 mm (9.1 inches)82%very high
August Weather15°C (60°F)232 mm (9.1 inches)80%very high
September Weather11°C (53°F)166 mm (6.5 inches)83%high
October Weather8°C (46°F)136 mm (5.3 inches)90%moderate
November Weather2°C (36°F)92 mm (3.6 inches)89%moderate
December Weather-2°C (28°F)145 mm (5.7 inches)90%low

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