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September Weather in Harloesa, Sweden

Last updated: August 27, 2025

In Harloesa, Sweden, the average temperature in September hovers around 14°C (57°F). Expect minimums to dip to 1°C (35°F) and maximums to reach up to 26°C (79°F). During this month, you can anticipate about 71 mm (2.8 in) of precipitation, spread over 12 days. With an average humidity of 82%, it’s a time to embrace the mild and often damp conditions.

September Temperature in Harloesa

In September, in Harloesa, the average temperature is 14°C (57°F). Maximums can reach 26°C (79°F), while minimums can drop as low as 1°C (35°F). This variability makes it essential for travelers to pack layers to comfortably navigate the changing weather.

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

The chart illustrates September temperature patterns in Harloesa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harloesa, September typically has an average temperature of 14°C (57°F), with highs reaching up to 26°C (79°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec353537445261636357504337
Data source: Temperature data for Harloesa 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 Harloesa

In Harloesa in September, the precipitation amount is 71 mm (2.8 in) during a total of 12 days.

September Precipitation Trends in Harloesa

The chart displays monthly precipitation patterns in Harloesa, 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 Harloesa, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec505867375954838771844561
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Harloesa

In Harloesa in September, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

September Average Humidity in Harloesa

This chart illustrates the average monthly humidity levels in Harloesa, 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 Harloesa is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%88%87%85%82%81%82%80%82%85%85%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Harloesa

In Harloesa 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 Harloesa.

Maximum UV Index Levels in Harloesa for September

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

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

This table compares monthly weather conditions in Harloesa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)50 mm (2.0 inches)87%low
February Weather1°C (35°F)58 mm (2.3 inches)88%low
March Weather3°C (38°F)67 mm (2.6 inches)87%moderate
April Weather6°C (44°F)37 mm (1.4 inches)85%moderate
May Weather11°C (52°F)59 mm (2.3 inches)82%high
June Weather16°C (62°F)54 mm (2.1 inches)81%high
July Weather17°C (63°F)83 mm (3.3 inches)82%high
August Weather17°C (63°F)87 mm (3.4 inches)80%high
September Weather14°C (57°F)71 mm (2.8 inches)82%moderate
October Weather10°C (50°F)84 mm (3.3 inches)85%moderate
November Weather6°C (43°F)45 mm (1.8 inches)85%low
December Weather3°C (37°F)61 mm (2.4 inches)85%low

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