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September Weather in Svartvik, Sweden

Last updated: August 27, 2025

In September, the average temperature in Svartvik, Sweden hovers around 12°C (54°F), with minimums dipping to 5°C (42°F) and maximums reaching up to 18°C (64°F). Expect relative humidity around 87%, alongside precipitation totaling 68 mm (2.7 in) spread over 12 days. Get ready for a mix of cool days and occasional rain!

September Temperature in Svartvik

In September in Svartvik, the average temperature is 12°C (54°F). Maximum temperatures can reach 18°C (64°F), while the minimum can drop to as low as 5°C (42°F). It's a great time to experience mild weather, making it ideal for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Svartvik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Svartvik, September typically has an average temperature of 12°C (54°F), with highs reaching up to 18°C (64°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec302932374455616154453833
Data source: Temperature data for Svartvik 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 Svartvik

In Svartvik in September, the precipitation amount is 68 mm (2.7 in) over the course of 12 days.

September Precipitation Trends in Svartvik

The chart displays monthly precipitation patterns in Svartvik, 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 Svartvik, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec6049422735466367681297388
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Svartvik

In Svartvik in September humidity is 87%. With an average temperature of 12°C (54°F), this humidity feels like a damp embrace, making it quite uncomfortable for traveling, as the air feels heavy and can quickly sap your energy as you explore the sights.

September Average Humidity in Svartvik

This chart illustrates the average monthly humidity levels in Svartvik, 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 Svartvik is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%94%91%85%80%75%80%84%87%92%92%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Svartvik

In Svartvik in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Svartvik, you can check the information here.

Maximum UV Index Levels in Svartvik for September

The chart shows the monthly maximum UV Index (UVI) for Svartvik 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 Svartvik typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112456653211
Data source: Svartvik 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 Svartvik Compares to Other Months

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

This table compares monthly weather conditions in Svartvik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)60 mm (2.3 inches)95%low
February Weather-2°C (29°F)49 mm (1.9 inches)94%low
March Weather0°C (32°F)42 mm (1.7 inches)91%low
April Weather3°C (37°F)27 mm (1.1 inches)85%moderate
May Weather7°C (44°F)35 mm (1.4 inches)79%moderate
June Weather13°C (55°F)46 mm (1.8 inches)75%high
July Weather16°C (61°F)63 mm (2.5 inches)80%high
August Weather16°C (61°F)67 mm (2.7 inches)84%moderate
September Weather12°C (54°F)68 mm (2.7 inches)87%moderate
October Weather7°C (45°F)129 mm (5.1 inches)92%low
November Weather3°C (38°F)73 mm (2.9 inches)92%low
December Weather1°C (33°F)87 mm (3.4 inches)94%low

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