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September Weather in Storforshei, Norway

Last updated: August 27, 2025

In September, the average temperature in Storforshei, Norway hovers around 6°C (44°F). Expect a chilly atmosphere with minimums plunging to -7°C (20°F) and maximums reaching up to 17°C (63°F). Prepare for wet days, as the region experiences 165 mm (6.5 in) of precipitation over 19 days. With an average humidity of 87%, layers and waterproof gear are highly recommended!

September Temperature in Storforshei

In September in Storforshei, the average temperature is 6°C (44°F). The maximum can reach 17°C (63°F), while the minimum can be as low as -7°C (20°F). Therefore, travelers should prepare for a range of temperatures and dress in layers to ensure comfort throughout the day.

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

The chart illustrates September temperature patterns in Storforshei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Storforshei, September typically has an average temperature of 6°C (44°F), with highs reaching up to 17°C (63°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec191923303648555144342521
Data source: Temperature data for Storforshei 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 Storforshei

In Storforshei in September, the precipitation amount is 165 mm (6.5 in) over the course of 19 days.

September Precipitation Trends in Storforshei

The chart displays monthly precipitation patterns in Storforshei, 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 Storforshei, September typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec19313720712572111108142165145148135
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Storforshei

In Storforshei in September humidity is 87%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable without proper layers and preparation.

September Average Humidity in Storforshei

This chart illustrates the average monthly humidity levels in Storforshei, 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 Storforshei is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%83%77%79%82%84%87%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Storforshei

In Storforshei 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 Storforshei, you can check the information here.

Maximum UV Index Levels in Storforshei for September

The chart shows the monthly maximum UV Index (UVI) for Storforshei 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 Storforshei typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456643211
Data source: Storforshei 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 Storforshei Compares to Other Months

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

This table compares monthly weather conditions in Storforshei, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)193 mm (7.6 inches)88%low
February Weather-7°C (19°F)137 mm (5.4 inches)87%low
March Weather-5°C (23°F)207 mm (8.1 inches)85%moderate
April Weather-1°C (30°F)125 mm (4.9 inches)83%moderate
May Weather2°C (36°F)72 mm (2.8 inches)77%moderate
June Weather9°C (48°F)111 mm (4.4 inches)79%high
July Weather13°C (55°F)108 mm (4.3 inches)82%high
August Weather11°C (51°F)142 mm (5.6 inches)84%moderate
September Weather6°C (44°F)165 mm (6.5 inches)87%moderate
October Weather1°C (34°F)145 mm (5.7 inches)88%low
November Weather-4°C (26°F)148 mm (5.8 inches)87%low
December Weather-6°C (21°F)135 mm (5.3 inches)87%low

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