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September Weather in Sylling, Norway

Last updated: August 27, 2025

In Sylling, Norway, the average temperature in September is a cool 12°C (54°F). You'll experience a minimum chill of 3°C (38°F) and a pleasant maximum of 23°C (74°F). Be prepared for some rain, as precipitation typically reaches 102 mm (4.0 in) over 12 days. With an average humidity of 86%, expect a bit of muggy weather!

September Temperature in Sylling

In September in Sylling, the average temperature is 12°C (54°F). Maximum temperatures can reach 23°C (74°F), while minimums can dip as low as 3°C (38°F). It's a great time for travelers to enjoy a mix of mild weather and pleasant daytime temperatures, perfect for exploring and outdoor activities.

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

The chart illustrates September temperature patterns in Sylling, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sylling, September typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec252732404959636054443627
Data source: Temperature data for Sylling 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 Sylling

In Sylling in September, the total precipitation amount is 102 mm (4.0 in), occurring over a span of 12 days.

September Precipitation Trends in Sylling

The chart displays monthly precipitation patterns in Sylling, 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 Sylling, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec576163388688949610212594102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sylling

In Sylling 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 Sylling

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

In Sylling 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 Sylling for better planning.

Maximum UV Index Levels in Sylling for September

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

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

This table compares monthly weather conditions in Sylling, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)57 mm (2.3 inches)94%low
February Weather-3°C (27°F)61 mm (2.4 inches)92%low
March Weather0°C (32°F)63 mm (2.5 inches)89%moderate
April Weather4°C (40°F)38 mm (1.5 inches)82%moderate
May Weather9°C (49°F)86 mm (3.4 inches)73%moderate
June Weather15°C (59°F)88 mm (3.5 inches)71%high
July Weather17°C (63°F)94 mm (3.7 inches)72%high
August Weather16°C (61°F)96 mm (3.8 inches)77%moderate
September Weather12°C (54°F)102 mm (4.0 inches)86%moderate
October Weather7°C (44°F)125 mm (4.9 inches)92%low
November Weather2°C (36°F)94 mm (3.7 inches)93%low
December Weather-3°C (27°F)102 mm (4.0 inches)93%low

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