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September Weather in Slottsbron, Sweden

Last updated: August 27, 2025

In Slottsbron, Sweden, the average temperature in September hovers around 13°C (55°F). Expect ranges between a minimum of 3°C (37°F) and a maximum of 22°C (71°F). During this time, you can anticipate approximately 80 mm (3.1 in) of precipitation spread over 12 days. With an average humidity level of 86%, be prepared for a pleasantly damp atmosphere!

September Temperature in Slottsbron

In September in Slottsbron, the average temperature is 13°C (55°F). The maximum can reach 22°C (71°F), while the minimum can be as low as 3°C (37°F). This weather makes it a perfect time for travelers seeking mild conditions to explore the sights and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Slottsbron, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slottsbron, September typically has an average temperature of 13°C (55°F), with highs reaching up to 22°C (71°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323135425262646255473934
Data source: Temperature data for Slottsbron 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 Slottsbron

In Slottsbron in September, the total precipitation amount is 80 mm (3.1 in) spread over 12 days.

September Precipitation Trends in Slottsbron

The chart displays monthly precipitation patterns in Slottsbron, 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 Slottsbron, September typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec464948306565718680856977
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slottsbron

In Slottsbron in September humidity is 86%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket clinging to your skin, making travel quite uncomfortable and urging you to seek cooler, dryer spots.

September Average Humidity in Slottsbron

This chart illustrates the average monthly humidity levels in Slottsbron, 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 Slottsbron 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 Slottsbron

In Slottsbron 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 Slottsbron for better planning.

Maximum UV Index Levels in Slottsbron for September

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

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

This table compares monthly weather conditions in Slottsbron, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)46 mm (1.8 inches)94%low
February Weather0°C (32°F)49 mm (1.9 inches)92%low
March Weather2°C (36°F)48 mm (1.9 inches)89%moderate
April Weather6°C (42°F)29 mm (1.2 inches)81%moderate
May Weather11°C (52°F)65 mm (2.6 inches)72%moderate
June Weather16°C (62°F)65 mm (2.6 inches)68%high
July Weather18°C (65°F)71 mm (2.8 inches)70%high
August Weather17°C (62°F)86 mm (3.4 inches)77%moderate
September Weather13°C (55°F)80 mm (3.1 inches)86%moderate
October Weather8°C (47°F)85 mm (3.4 inches)91%low
November Weather4°C (39°F)68 mm (2.7 inches)93%low
December Weather1°C (34°F)77 mm (3.0 inches)94%low

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