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September Weather in Ilseng, Norway

Last updated: August 27, 2025

In September, the average temperature in Ilseng, Norway is a mild 11°C (52°F). Visitors can expect a temperature range between a brisk 1°C (34°F) and a pleasant 25°C (76°F). However, be prepared for 83 mm (3.3 in) of precipitation over approximately 12 days, contributing to the area's high average humidity of 91%.

September Temperature in Ilseng

In September in Ilseng, the average temperature is 11°C (52°F). Maximums can reach 25°C (76°F) and minimums can be as low as 1°C (34°F). It's an ideal time to explore the beauty of Ilseng, so pack accordingly for both warm days and chilly nights.

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

The chart illustrates September temperature patterns in Ilseng, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilseng, September typically has an average temperature of 11°C (52°F), with highs reaching up to 25°C (76°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec242532394959615852423427
Data source: Temperature data for Ilseng 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 Ilseng

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

September Precipitation Trends in Ilseng

The chart displays monthly precipitation patterns in Ilseng, 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 Ilseng, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4746503682788397831038582
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ilseng

In Ilseng in September, humidity is 91%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers and plan for cozy indoor activities rather than lengthy outdoor explorations.

September Average Humidity in Ilseng

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

In Ilseng 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 Ilseng for better planning.

Maximum UV Index Levels in Ilseng for September

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

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

This table compares monthly weather conditions in Ilseng, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)47 mm (1.9 inches)98%low
February Weather-4°C (25°F)46 mm (1.8 inches)95%low
March Weather0°C (32°F)50 mm (2.0 inches)92%moderate
April Weather4°C (39°F)36 mm (1.4 inches)88%moderate
May Weather10°C (49°F)82 mm (3.2 inches)84%moderate
June Weather15°C (60°F)78 mm (3.1 inches)82%high
July Weather16°C (62°F)83 mm (3.3 inches)82%high
August Weather15°C (59°F)97 mm (3.8 inches)87%moderate
September Weather11°C (52°F)83 mm (3.3 inches)91%moderate
October Weather6°C (43°F)103 mm (4.1 inches)95%low
November Weather1°C (34°F)85 mm (3.4 inches)97%low
December Weather-3°C (27°F)82 mm (3.2 inches)98%low

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