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September Weather in Selvik, Norway

Last updated: August 27, 2025

In Selvik, Norway, the average temperature in September is a comfortable 12°C (54°F). However, temperatures can range from a chilly 1°C (34°F) to a warm 25°C (78°F). Expect about 129 mm (5.1 in) of precipitation spread over 13 days, and don't forget the high humidity, with an average of 86%. Be prepared for both warm days and moisture-laden air!

September Temperature in Selvik

In September in Selvik, the average temperature is 12°C (54°F). Maximums can reach 25°C (78°F), while minimums can dip down to 1°C (34°F). This mild weather makes it an ideal time for sightseeing and outdoor activities.

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

The chart illustrates September temperature patterns in Selvik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Selvik, September typically has an average temperature of 12°C (54°F), with highs reaching up to 25°C (78°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec292934425161646154453730
Data source: Temperature data for Selvik 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 Selvik

In Selvik in September, the precipitation amount is 129 mm (5.1 in) over the course of 13 days.

September Precipitation Trends in Selvik

The chart displays monthly precipitation patterns in Selvik, 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 Selvik, September typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec73797840889910794130146119127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Selvik

In Selvik in September, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

September Average Humidity in Selvik

This chart illustrates the average monthly humidity levels in Selvik, 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 Selvik is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Selvik

In Selvik 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 Selvik for better planning.

Maximum UV Index Levels in Selvik for September

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

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

This table compares monthly weather conditions in Selvik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)73 mm (2.9 inches)94%low
February Weather-2°C (29°F)79 mm (3.1 inches)92%low
March Weather1°C (34°F)78 mm (3.1 inches)89%moderate
April Weather6°C (42°F)40 mm (1.6 inches)82%moderate
May Weather11°C (52°F)88 mm (3.5 inches)73%moderate
June Weather16°C (61°F)99 mm (3.9 inches)71%high
July Weather18°C (64°F)107 mm (4.2 inches)72%high
August Weather16°C (61°F)94 mm (3.7 inches)77%moderate
September Weather12°C (54°F)129 mm (5.1 inches)86%moderate
October Weather7°C (45°F)146 mm (5.7 inches)92%low
November Weather3°C (37°F)119 mm (4.7 inches)93%low
December Weather-1°C (30°F)127 mm (5.0 inches)93%low

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