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September Weather in OEsterbymo, Sweden

Last updated: August 27, 2025

In September, the average temperature in OEsterbymo, Sweden hovers around 12°C (54°F). During this month, expect minimum temperatures to dip to -1°C (31°F), while maximums can reach a pleasant 24°C (76°F). With an average precipitation of 71 mm (2.8 in) spread over 11 days, and high humidity at 81%, it's wise to embrace layers and be prepared for occasional rain.

September Temperature in OEsterbymo

In September in OEsterbymo, the average temperature is 12°C (54°F). The maximum can reach 24°C (76°F), while the minimum can be as low as -1°C (31°F). Travelers should prepare for a wide range of weather conditions during this time.

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

The chart illustrates September temperature patterns in OEsterbymo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In OEsterbymo, September typically has an average temperature of 12°C (54°F), with highs reaching up to 24°C (76°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec313135415161636154463933
Data source: Temperature data for OEsterbymo 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 OEsterbymo

In OEsterbymo in September, the precipitation amount is 71 mm (2.8 in) distributed over 11 days.

September Precipitation Trends in OEsterbymo

The chart displays monthly precipitation patterns in OEsterbymo, 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 OEsterbymo, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec384548346560798471704552
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in OEsterbymo

In OEsterbymo in September humidity is 81%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel sluggish and uncomfortable as you battle the stickiness while trying to enjoy your surroundings.

September Average Humidity in OEsterbymo

This chart illustrates the average monthly humidity levels in OEsterbymo, 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 OEsterbymo is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%82%72%68%68%73%81%87%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in OEsterbymo

In OEsterbymo 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 OEsterbymo for better planning.

Maximum UV Index Levels in OEsterbymo for September

The chart shows the monthly maximum UV Index (UVI) for OEsterbymo 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 OEsterbymo typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567764211
Data source: OEsterbymo 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 OEsterbymo Compares to Other Months

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

This table compares monthly weather conditions in OEsterbymo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)38 mm (1.5 inches)90%low
February Weather-1°C (31°F)45 mm (1.8 inches)89%low
March Weather1°C (35°F)48 mm (1.9 inches)88%moderate
April Weather5°C (42°F)34 mm (1.3 inches)82%moderate
May Weather11°C (51°F)65 mm (2.5 inches)72%high
June Weather16°C (62°F)60 mm (2.4 inches)68%high
July Weather17°C (63°F)79 mm (3.1 inches)68%high
August Weather16°C (61°F)84 mm (3.3 inches)73%high
September Weather12°C (54°F)71 mm (2.8 inches)81%moderate
October Weather8°C (46°F)70 mm (2.8 inches)87%low
November Weather4°C (39°F)45 mm (1.8 inches)89%low
December Weather0°C (33°F)51 mm (2.0 inches)88%low

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