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September Weather in Kolbu, Norway

Last updated: August 27, 2025

In Kolbu, Norway, the average temperature in September hovers around 11°C (51°F), making it a cool yet pleasant time of year. Expect temperatures to range from a brisk 1°C (34°F) to a comfortable 24°C (76°F). Be prepared for some rainfall too, with an average precipitation of 88 mm (3.5 in) over approximately 12 days. The ambiance is also quite humid, with an average humidity level of 91%.

September Temperature in Kolbu

In September in Kolbu, the average temperature is 11°C (51°F), with maximums reaching up to 24°C (76°F) and minimums dropping as low as 1°C (34°F). This mild climate makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Kolbu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kolbu, September typically has an average temperature of 11°C (51°F), with highs reaching up to 24°C (76°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec232431384959615851423426
Data source: Temperature data for Kolbu 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 Kolbu

In Kolbu in September, the precipitation amount is 88 mm (3.5 in) over a span of 12 days.

September Precipitation Trends in Kolbu

The chart displays monthly precipitation patterns in Kolbu, 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 Kolbu, September typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec49485237858486100881078485
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kolbu

In Kolbu in September, humidity is 91%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that permeates your clothes, making sightseeing uncomfortable and travel more strenuous than usual.

September Average Humidity in Kolbu

This chart illustrates the average monthly humidity levels in Kolbu, 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 Kolbu is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%95%92%88%84%82%82%87%91%95%97%98%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kolbu

In Kolbu 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 Kolbu for better planning.

Maximum UV Index Levels in Kolbu for September

The chart shows the monthly maximum UV Index (UVI) for Kolbu 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 Kolbu typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Kolbu 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 Kolbu Compares to Other Months

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

This table compares monthly weather conditions in Kolbu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)49 mm (1.9 inches)98%low
February Weather-4°C (24°F)48 mm (1.9 inches)95%low
March Weather-1°C (31°F)52 mm (2.0 inches)92%moderate
April Weather3°C (38°F)37 mm (1.5 inches)88%moderate
May Weather9°C (49°F)85 mm (3.3 inches)84%moderate
June Weather15°C (59°F)84 mm (3.3 inches)82%high
July Weather16°C (61°F)86 mm (3.4 inches)82%high
August Weather14°C (58°F)100 mm (3.9 inches)87%moderate
September Weather11°C (51°F)88 mm (3.5 inches)91%moderate
October Weather6°C (42°F)107 mm (4.2 inches)95%low
November Weather1°C (34°F)84 mm (3.3 inches)97%low
December Weather-3°C (26°F)85 mm (3.4 inches)98%low

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