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September Weather in Langvik, Sweden

Last updated: August 27, 2025

In September, the average temperature in Langvik, Sweden hovers around 14°C (57°F). Expect a comfortable mix of warmth, with minimums dipping to 6°C (43°F) and maximums reaching up to 20°C (68°F). However, be prepared for occasional showers, as the area receives around 54 mm (2.1 in) of precipitation over 10 days. With an average humidity of 85%, you may want to pack your light jacket and umbrella!

September Temperature in Langvik

In September in Langvik, the average temperature is 14°C (57°F), with maximums reaching 20°C (68°F) and minimums dipping as low as 6°C (43°F). This mild climate makes it an ideal time for exploring the sights and enjoying outdoor activities in Langvik.

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

The chart illustrates September temperature patterns in Langvik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Langvik, September typically has an average temperature of 14°C (57°F), with highs reaching up to 20°C (68°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec343335394758636357494236
Data source: Temperature data for Langvik 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 Langvik

In Langvik in September, the total precipitation amount is 54 mm (2.1 in) over the course of 10 days.

September Precipitation Trends in Langvik

The chart displays monthly precipitation patterns in Langvik, 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 Langvik, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec484245244837516454916081
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Langvik

In Langvik in September, humidity is 85%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and sluggish.

September Average Humidity in Langvik

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

In Langvik 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 Langvik for better planning.

Maximum UV Index Levels in Langvik for September

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

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

This table compares monthly weather conditions in Langvik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)48 mm (1.9 inches)90%low
February Weather0°C (33°F)42 mm (1.6 inches)88%low
March Weather2°C (35°F)45 mm (1.8 inches)89%moderate
April Weather4°C (40°F)24 mm (1.0 inches)85%moderate
May Weather8°C (47°F)48 mm (1.9 inches)77%moderate
June Weather14°C (58°F)37 mm (1.5 inches)76%high
July Weather17°C (63°F)51 mm (2.0 inches)74%high
August Weather17°C (63°F)64 mm (2.5 inches)77%moderate
September Weather14°C (57°F)54 mm (2.1 inches)85%moderate
October Weather9°C (49°F)91 mm (3.6 inches)89%low
November Weather6°C (43°F)60 mm (2.4 inches)90%low
December Weather2°C (37°F)81 mm (3.2 inches)87%low

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