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September Weather in OEsterby, Sweden

Last updated: August 27, 2025

In September, the average temperature in OEsterby, Sweden is a mild 14°C (58°F). This period experiences temperatures ranging from a cool 6°C (43°F) to a warm 25°C (77°F). With an average humidity of 83%, you can expect some dampness in the air. Additionally, there's an average precipitation of 55 mm (2.1 in) spread over 12 days, making it essential to be prepared for occasional rain showers.

September Temperature in OEsterby

In September in OEsterby, the average temperature is 14°C (58°F). The maximum can reach up to 25°C (77°F), while the minimum can drop to as low as 6°C (43°F). Overall, it's a pleasantly mild time for traveling, making it ideal for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in OEsterby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In OEsterby, September typically has an average temperature of 14°C (58°F), with highs reaching up to 25°C (77°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec363437415061646458504437
Data source: Temperature data for OEsterby 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 OEsterby

In OEsterby in September, the precipitation amount is 55 mm (2.1 in) spread over 12 days.

September Precipitation Trends in OEsterby

The chart displays monthly precipitation patterns in OEsterby, 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 OEsterby, September typically receives around 55 mm (2.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec464142213437685855806158
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in OEsterby

In OEsterby in September, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.

September Average Humidity in OEsterby

This chart illustrates the average monthly humidity levels in OEsterby, 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 OEsterby is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%87%84%86%85%84%83%85%85%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in OEsterby

In OEsterby 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 OEsterby for better planning.

Maximum UV Index Levels in OEsterby for September

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

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

This table compares monthly weather conditions in OEsterby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)46 mm (1.8 inches)86%low
February Weather1°C (35°F)41 mm (1.6 inches)85%low
March Weather3°C (37°F)42 mm (1.6 inches)87%moderate
April Weather5°C (42°F)21 mm (0.8 inches)87%moderate
May Weather10°C (50°F)33 mm (1.3 inches)84%moderate
June Weather16°C (61°F)37 mm (1.5 inches)86%high
July Weather18°C (65°F)68 mm (2.7 inches)85%high
August Weather18°C (65°F)58 mm (2.3 inches)84%high
September Weather14°C (58°F)55 mm (2.1 inches)83%moderate
October Weather10°C (50°F)79 mm (3.1 inches)85%low
November Weather7°C (44°F)61 mm (2.4 inches)85%low
December Weather3°C (38°F)58 mm (2.3 inches)82%low

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