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September Weather in Grasten, Denmark

Last updated: August 23, 2025

In September, the average temperature in Grasten, Denmark hovers around 14°C (58°F), with a minimum dipping to 4°C (39°F) and a maximum soaring to 27°C (80°F). Expect 77 mm (3.0 in) of rain spread over approximately 12 days, with the air feeling quite humid at an average of 84%.

September Temperature in Grasten

In September, in Grasten, the average temperature is 14°C (58°F). Maximums can reach 27°C (80°F), while minimums can drop to as low as 4°C (39°F). It's a perfect time for travelers to enjoy a mild climate with opportunities for various outdoor activities.

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

The chart illustrates September temperature patterns in Grasten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grasten, September typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (80°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec383740455362636358524439
Data source: Temperature data for Grasten 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 Grasten

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

September Precipitation Trends in Grasten

The chart displays monthly precipitation patterns in Grasten, 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 Grasten, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec526372447466809077905364
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Grasten

In Grasten in September humidity is 84%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket enveloping you, making every step feel sluggish and damp, which can be uncomfortable for traveling.

September Average Humidity in Grasten

This chart illustrates the average monthly humidity levels in Grasten, 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 Grasten is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%84%79%75%76%77%84%87%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Grasten

In Grasten 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 Grasten.

Maximum UV Index Levels in Grasten for September

The chart shows the monthly maximum UV Index (UVI) for Grasten 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 Grasten typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765321
Data source: Grasten 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 Grasten Compares to Other Months

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

This table compares monthly weather conditions in Grasten, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)52 mm (2.0 inches)89%low
February Weather3°C (38°F)63 mm (2.5 inches)88%low
March Weather4°C (40°F)72 mm (2.8 inches)87%moderate
April Weather7°C (46°F)44 mm (1.7 inches)84%moderate
May Weather12°C (53°F)74 mm (2.9 inches)79%high
June Weather16°C (62°F)66 mm (2.6 inches)75%high
July Weather17°C (63°F)80 mm (3.1 inches)76%high
August Weather17°C (64°F)90 mm (3.5 inches)77%high
September Weather14°C (58°F)77 mm (3.0 inches)84%moderate
October Weather11°C (52°F)90 mm (3.5 inches)87%moderate
November Weather7°C (44°F)53 mm (2.1 inches)88%low
December Weather4°C (40°F)64 mm (2.5 inches)87%low

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