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September Weather in Olstykke, Denmark

Last updated: August 23, 2025

In Olstykke, Denmark, the average temperature for September hovers around 14°C (58°F). Daily temperatures can swing from a cool 2°C (36°F) to a warm 26°C (80°F). Expect some wet days, with 77 mm (3.0 in) of precipitation falling over approximately 12 days. The average humidity sits at a comfortable 83%, making it a refreshing time of year to visit!

September Temperature in Olstykke

In September in Olstykke, the average temperature is 14°C (58°F). The maximum can reach 26°C (80°F) and the minimum can be as low as 2°C (36°F). This climate makes it a delightful time for travelers seeking mild weather and a chance to explore the area comfortably.

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

The chart illustrates September temperature patterns in Olstykke, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olstykke, September typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (80°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec373639455363646458514438
Data source: Temperature data for Olstykke 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 Olstykke

In Olstykke in September, the precipitation amount is 77 mm (3.0 in) spread over 12 days.

September Precipitation Trends in Olstykke

The chart displays monthly precipitation patterns in Olstykke, 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 Olstykke, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec484662365648768977794057
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olstykke

In Olstykke in September, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.

September Average Humidity in Olstykke

This chart illustrates the average monthly humidity levels in Olstykke, 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 Olstykke is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%85%80%77%77%77%84%87%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olstykke

In Olstykke 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 Olstykke.

Maximum UV Index Levels in Olstykke for September

The chart shows the monthly maximum UV Index (UVI) for Olstykke 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 Olstykke typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765311
Data source: Olstykke 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 Olstykke Compares to Other Months

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

This table compares monthly weather conditions in Olstykke, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)48 mm (1.9 inches)90%low
February Weather2°C (36°F)46 mm (1.8 inches)89%low
March Weather4°C (39°F)62 mm (2.4 inches)88%moderate
April Weather7°C (45°F)36 mm (1.4 inches)85%moderate
May Weather12°C (54°F)56 mm (2.2 inches)80%high
June Weather17°C (63°F)47 mm (1.9 inches)77%high
July Weather18°C (64°F)76 mm (3.0 inches)77%high
August Weather18°C (64°F)89 mm (3.5 inches)77%high
September Weather14°C (58°F)77 mm (3.0 inches)83%moderate
October Weather10°C (51°F)79 mm (3.1 inches)87%moderate
November Weather7°C (44°F)40 mm (1.6 inches)89%low
December Weather4°C (39°F)57 mm (2.2 inches)88%low

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