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September Weather in Alvik, Sweden

Last updated: August 27, 2025

In September, the average temperature in Alvik, Sweden hovers around 10°C (50°F), with fluctuations ranging from a minimum of -1°C (30°F) to a maximum of 20°C (68°F). Expect approximately 67 mm (2.6 in) of precipitation over 10 days, contributing to an average humidity of 88%. Enjoy the crisp air, but be prepared for the charming, damp conditions!

September Temperature in Alvik

In September, in Alvik, the average temperature is 10°C (50°F). The maximum can reach 20°C (68°F), while the minimum can be as low as -1°C (30°F). This mild weather makes Alvik an ideal destination for travelers looking to explore diverse outdoor activities.

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

The chart illustrates September temperature patterns in Alvik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alvik, September typically has an average temperature of 10°C (50°F), with highs reaching up to 20°C (68°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec191826344557625950393024
Data source: Temperature data for Alvik 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 Alvik

In Alvik in September, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

September Precipitation Trends in Alvik

The chart displays monthly precipitation patterns in Alvik, 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 Alvik, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec544143284655748167945773
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Alvik

In Alvik in September, humidity is 88%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and encouraging travelers to seek cozy indoor activities instead.

September Average Humidity in Alvik

This chart illustrates the average monthly humidity levels in Alvik, 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 Alvik is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%90%84%82%78%82%84%88%92%93%96%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Alvik

In Alvik 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 Alvik, you can check the information here.

Maximum UV Index Levels in Alvik for September

The chart shows the monthly maximum UV Index (UVI) for Alvik 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 Alvik typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112346543211
Data source: Alvik 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 Alvik Compares to Other Months

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

This table compares monthly weather conditions in Alvik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)54 mm (2.1 inches)97%low
February Weather-8°C (18°F)41 mm (1.6 inches)95%low
March Weather-3°C (26°F)43 mm (1.7 inches)90%low
April Weather1°C (34°F)28 mm (1.1 inches)84%moderate
May Weather7°C (45°F)46 mm (1.8 inches)81%moderate
June Weather14°C (57°F)55 mm (2.2 inches)78%high
July Weather17°C (62°F)74 mm (2.9 inches)82%moderate
August Weather15°C (59°F)81 mm (3.2 inches)84%moderate
September Weather10°C (50°F)67 mm (2.6 inches)88%moderate
October Weather4°C (39°F)94 mm (3.7 inches)92%low
November Weather-1°C (30°F)57 mm (2.3 inches)93%low
December Weather-5°C (24°F)73 mm (2.9 inches)96%low

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