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September Weather in Haellekis, Sweden

Last updated: August 27, 2025

In September, the average temperature in Haellekis, Sweden is a pleasant 14°C (57°F). However, be prepared for fluctuations, as temperatures can drop to a cool 7°C (45°F) or rise to a comfortable 22°C (71°F). With an average precipitation of 100 mm (3.9 in) spread over about 15 days, and an average humidity of 86%, it's wise to pack for both warmth and moisture.

September Temperature in Haellekis

In September in Haellekis, the average temperature is 14°C (57°F), with maximums potentially reaching 22°C (71°F) and minimums dipping as low as 7°C (45°F). This mild weather makes it an ideal time for travelers to explore the region comfortably.

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

The chart illustrates September temperature patterns in Haellekis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haellekis, September typically has an average temperature of 14°C (57°F), with highs reaching up to 22°C (71°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec353335415061646357494236
Data source: Temperature data for Haellekis 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 Haellekis

In Haellekis in September, the precipitation amount is 100 mm (3.9 in) over a span of 15 days.

September Precipitation Trends in Haellekis

The chart displays monthly precipitation patterns in Haellekis, 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 Haellekis, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4245502758628096100986764
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Haellekis

In Haellekis in September humidity is 86%. With an average temperature of 14°C (57°F), this humidity feels like a heavy blanket enveloping you, making travel feel oppressive and uncomfortably sticky.

September Average Humidity in Haellekis

This chart illustrates the average monthly humidity levels in Haellekis, 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 Haellekis is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%81%72%68%70%77%86%91%93%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Haellekis

In Haellekis in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Haellekis for better planning.

Maximum UV Index Levels in Haellekis for September

The chart shows the monthly maximum UV Index (UVI) for Haellekis 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 Haellekis typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457764211
Data source: Haellekis 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 Haellekis Compares to Other Months

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

This table compares monthly weather conditions in Haellekis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)42 mm (1.7 inches)94%low
February Weather0°C (33°F)45 mm (1.8 inches)92%low
March Weather2°C (35°F)50 mm (2.0 inches)89%moderate
April Weather5°C (41°F)27 mm (1.1 inches)81%moderate
May Weather10°C (50°F)58 mm (2.3 inches)72%moderate
June Weather16°C (61°F)62 mm (2.4 inches)68%high
July Weather18°C (65°F)80 mm (3.2 inches)70%high
August Weather17°C (63°F)96 mm (3.8 inches)77%high
September Weather14°C (57°F)100 mm (3.9 inches)86%moderate
October Weather9°C (49°F)98 mm (3.9 inches)91%low
November Weather6°C (42°F)67 mm (2.7 inches)93%low
December Weather2°C (37°F)64 mm (2.5 inches)94%low

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