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September Weather in Viersen, Germany

Last updated: August 23, 2025

In September, the average temperature in Viersen, Germany is a pleasant 16°C (60°F), with variations that can see a minimum of 3°C (38°F) and a maximum of 33°C (92°F). Expect a total precipitation of 61 mm (2.4 in) across 11 days, contributing to an average humidity level of 81%, making the atmosphere feel quite vibrant and lush.

September Temperature in Viersen

In September in Viersen, the average temperature is 16°C (60°F). Maximum temperatures can reach 33°C (92°F), while the minimum can drop as low as 3°C (38°F). This range makes Viersen a versatile destination for travelers, allowing for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Viersen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viersen, September typically has an average temperature of 16°C (60°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec394145505766676760544541
Data source: Temperature data for Viersen 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 Viersen

In Viersen in September, the total precipitation amount is 61 mm (2.4 in) over the course of 11 days.

September Precipitation Trends in Viersen

The chart displays monthly precipitation patterns in Viersen, 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 Viersen, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7076753967699373619758102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Viersen

In Viersen in September, humidity is 81%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you as you travel, making you acutely aware of the sweat on your skin and creating an atmosphere that might dampen your spirits but also invites you to seek out refreshing beverages and shady spots.

September Average Humidity in Viersen

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

In Viersen 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 Viersen.

Maximum UV Index Levels in Viersen for September

The chart shows the monthly maximum UV Index (UVI) for Viersen 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 Viersen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Viersen 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 Viersen Compares to Other Months

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

This table compares monthly weather conditions in Viersen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)70 mm (2.8 inches)91%low
February Weather5°C (41°F)76 mm (3.0 inches)90%low
March Weather7°C (45°F)75 mm (3.0 inches)87%moderate
April Weather10°C (51°F)39 mm (1.5 inches)84%moderate
May Weather14°C (57°F)67 mm (2.6 inches)77%high
June Weather19°C (66°F)68 mm (2.7 inches)74%very high
July Weather19°C (67°F)93 mm (3.7 inches)72%very high
August Weather19°C (67°F)73 mm (2.9 inches)71%high
September Weather16°C (60°F)61 mm (2.4 inches)81%moderate
October Weather12°C (54°F)97 mm (3.8 inches)88%moderate
November Weather7°C (45°F)58 mm (2.3 inches)91%low
December Weather5°C (42°F)102 mm (4.0 inches)92%low

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