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September Weather in Soedertaelje, Sweden

Last updated: August 27, 2025

In September, the average temperature in Soedertaelje, Sweden is a comfortable 13°C (55°F), with a minimum dipping to 0°C (32°F) and a pleasant maximum reaching 25°C (78°F). Expect some rain, with an average precipitation of 53 mm (2.1 in) spread over 9 days, contributing to the region's average humidity of 85%. Prepare for a mix of mild weather and the occasional shower!

September Temperature in Soedertaelje

In September in Soedertaelje, the average temperature is 13°C (55°F). The maximum can reach 25°C (78°F), while the minimum can drop to as low as 0°C (32°F). Therefore, travelers should be prepared for a mix of mild to warm days and cooler nights.

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

The chart illustrates September temperature patterns in Soedertaelje, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Soedertaelje, September typically has an average temperature of 13°C (55°F), with highs reaching up to 25°C (78°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec313135415162646255463933
Data source: Temperature data for Soedertaelje 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 Soedertaelje

In Soedertaelje in September, the total precipitation amount is 53 mm (2.1 in) spread over 9 days.

September Precipitation Trends in Soedertaelje

The chart displays monthly precipitation patterns in Soedertaelje, 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 Soedertaelje, September typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec373342275654567153674258
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Soedertaelje

In Soedertaelje in September, humidity is 85%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making even short walks feel exhausting and urging travelers to seek shade and refreshment frequently.

September Average Humidity in Soedertaelje

This chart illustrates the average monthly humidity levels in Soedertaelje, 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 Soedertaelje is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%89%85%77%76%74%77%85%89%90%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Soedertaelje

In Soedertaelje 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 Soedertaelje for better planning.

Maximum UV Index Levels in Soedertaelje for September

The chart shows the monthly maximum UV Index (UVI) for Soedertaelje 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 Soedertaelje typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Soedertaelje 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 Soedertaelje Compares to Other Months

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

This table compares monthly weather conditions in Soedertaelje, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)37 mm (1.5 inches)90%low
February Weather-1°C (31°F)33 mm (1.3 inches)88%low
March Weather2°C (35°F)42 mm (1.7 inches)89%moderate
April Weather5°C (42°F)27 mm (1.1 inches)85%moderate
May Weather10°C (51°F)56 mm (2.2 inches)77%moderate
June Weather17°C (62°F)54 mm (2.1 inches)76%high
July Weather18°C (65°F)56 mm (2.2 inches)74%high
August Weather17°C (63°F)71 mm (2.8 inches)77%moderate
September Weather13°C (55°F)53 mm (2.1 inches)85%moderate
October Weather8°C (47°F)67 mm (2.6 inches)89%low
November Weather4°C (40°F)42 mm (1.7 inches)90%low
December Weather1°C (34°F)58 mm (2.3 inches)87%low

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