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September Weather in Kongsberg, Norway

Last updated: August 27, 2025

In Kongsberg, Norway, the average temperature in September hovers around 11°C (52°F). Temperatures can swing from a chilly 0°C (33°F) to a pleasant 24°C (76°F). During this month, expect about 122 mm (4.8 in) of precipitation spread over 13 days. With an average humidity of 86%, it's a perfect time to enjoy the cool, refreshing atmosphere!

September Temperature in Kongsberg

In September in Kongsberg, the average temperature is 11°C (52°F). Maximums can reach 24°C (76°F), and minimums can be as low as 0°C (33°F). This means travelers should be prepared for a mix of mild and cool weather, making it a great time to explore the area.

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

The chart illustrates September temperature patterns in Kongsberg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kongsberg, September typically has an average temperature of 11°C (52°F), with highs reaching up to 24°C (76°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec252631395059625952423426
Data source: Temperature data for Kongsberg 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 Kongsberg

In Kongsberg in September, the precipitation amount is 122 mm (4.8 in) recorded over a span of 13 days.

September Precipitation Trends in Kongsberg

The chart displays monthly precipitation patterns in Kongsberg, 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 Kongsberg, September typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec666974459210411698122135104118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kongsberg

In Kongsberg in September humidity is 86%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek sheltered spots or indoor attractions to escape the uncomfortable dampness.

September Average Humidity in Kongsberg

This chart illustrates the average monthly humidity levels in Kongsberg, 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 Kongsberg is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%88%83%75%74%74%78%86%92%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kongsberg

In Kongsberg 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 Kongsberg for better planning.

Maximum UV Index Levels in Kongsberg for September

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

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

This table compares monthly weather conditions in Kongsberg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)66 mm (2.6 inches)93%low
February Weather-3°C (26°F)69 mm (2.7 inches)91%low
March Weather0°C (32°F)74 mm (2.9 inches)88%moderate
April Weather4°C (40°F)45 mm (1.8 inches)83%moderate
May Weather10°C (50°F)92 mm (3.6 inches)75%moderate
June Weather15°C (60°F)104 mm (4.1 inches)74%high
July Weather17°C (62°F)116 mm (4.5 inches)74%high
August Weather15°C (59°F)98 mm (3.9 inches)78%moderate
September Weather11°C (52°F)122 mm (4.8 inches)86%moderate
October Weather6°C (43°F)135 mm (5.3 inches)92%low
November Weather1°C (34°F)104 mm (4.1 inches)92%low
December Weather-3°C (26°F)118 mm (4.6 inches)92%low

Compare Kongsberg's Climate with Cities Worldwide