nomadseason

September Weather in Fossby, Norway

Last updated: August 27, 2025

In September, the average temperature in Fossby, Norway hovers around 12°C (54°F). During this time, you can expect a minimum of 1°C (35°F) and a comfortable maximum of 21°C (71°F). However, be prepared for some rain, as the region receives about 83 mm (3.3 in) of precipitation over 12 days, contributing to an average humidity of 86%.

September Temperature in Fossby

In September in Fossby, the average temperature is 12°C (54°F). Maximum temperatures can reach 21°C (71°F), while the minimum can drop to as low as 1°C (35°F). It's a great time to visit for those who enjoy mild weather and the chance to explore comfortably.

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

The chart illustrates September temperature patterns in Fossby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fossby, September typically has an average temperature of 12°C (54°F), with highs reaching up to 21°C (71°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec323135425161636154463833
Data source: Temperature data for Fossby generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Fossby

In Fossby in September, the precipitation amount is 83 mm (3.3 in) distributed over the course of 12 days.

September Precipitation Trends in Fossby

The chart displays monthly precipitation patterns in Fossby, 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 Fossby, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec495754307176879583977679
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Fossby

In Fossby 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 Fossby

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

In Fossby 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 Fossby for better planning.

Maximum UV Index Levels in Fossby for September

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

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

This table compares monthly weather conditions in Fossby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)49 mm (1.9 inches)94%low
February Weather-1°C (31°F)57 mm (2.3 inches)92%low
March Weather2°C (35°F)54 mm (2.1 inches)89%moderate
April Weather6°C (42°F)30 mm (1.2 inches)82%moderate
May Weather11°C (51°F)71 mm (2.8 inches)73%moderate
June Weather16°C (61°F)76 mm (3.0 inches)71%high
July Weather17°C (64°F)87 mm (3.4 inches)72%high
August Weather16°C (61°F)95 mm (3.8 inches)77%moderate
September Weather12°C (54°F)83 mm (3.3 inches)86%moderate
October Weather8°C (47°F)96 mm (3.8 inches)92%low
November Weather4°C (39°F)76 mm (3.0 inches)93%low
December Weather0°C (33°F)79 mm (3.1 inches)93%low

Compare Fossby's Climate with Cities Worldwide