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September Weather in Andebu, Norway

Last updated: August 27, 2025

In September, the average temperature in Andebu, Norway hovers around 13°C (56°F). Expect minimums of 5°C (40°F) and maximums reaching 23°C (73°F). Be prepared for some rain, as precipitation averages 138 mm (5.4 in) over approximately 14 days, all while maintaining a comfortably high average humidity of 86%.

September Temperature in Andebu

In September in Andebu, the average temperature is 13°C (56°F). Maximum temperatures can reach 23°C (73°F), while the minimum can drop as low as 5°C (40°F). This makes it an ideal time for travelers who enjoy mild weather with comfortable daytime conditions and cooler evenings.

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

The chart illustrates September temperature patterns in Andebu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Andebu, September typically has an average temperature of 13°C (56°F), with highs reaching up to 23°C (73°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec323236435261646256484034
Data source: Temperature data for Andebu 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 Andebu

In Andebu in September, the total precipitation amount is 138 mm (5.4 in) over a span of 14 days.

September Precipitation Trends in Andebu

The chart displays monthly precipitation patterns in Andebu, 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 Andebu, September typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec7580773779909490138155128127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Andebu

In Andebu in September, humidity is 86%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or air-conditioned spaces frequently.

September Average Humidity in Andebu

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

In Andebu 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 Andebu for better planning.

Maximum UV Index Levels in Andebu for September

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

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

This table compares monthly weather conditions in Andebu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)75 mm (2.9 inches)94%low
February Weather0°C (32°F)80 mm (3.1 inches)92%low
March Weather2°C (36°F)77 mm (3.0 inches)89%moderate
April Weather6°C (43°F)37 mm (1.5 inches)82%moderate
May Weather11°C (52°F)79 mm (3.1 inches)73%moderate
June Weather16°C (61°F)90 mm (3.6 inches)71%high
July Weather18°C (64°F)93 mm (3.7 inches)72%high
August Weather17°C (62°F)90 mm (3.5 inches)77%moderate
September Weather13°C (56°F)138 mm (5.4 inches)86%moderate
October Weather9°C (48°F)155 mm (6.1 inches)92%low
November Weather4°C (40°F)128 mm (5.1 inches)93%low
December Weather1°C (34°F)127 mm (5.0 inches)93%low

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