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September Weather in Tomterasen, Norway

Last updated: August 27, 2025

In September, the average temperature in Tomterasen, Norway hovers around 12°C (53°F), with a refreshing range that can dip to a chilly 0°C (32°F) and peak at a warm 26°C (78°F). Expect a total precipitation of 88 mm (3.5 in) spread over about 12 days, creating a lush atmosphere. With an average humidity of 86%, the air feels pleasantly crisp, perfect for exploring the vibrant surroundings.

September Temperature in Tomterasen

In September in Tomterasen, the average temperature is 12°C (53°F). Maximums can reach 26°C (78°F), and minimums can be as low as 0°C (32°F). This variability in temperature makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates September temperature patterns in Tomterasen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomterasen, September typically has an average temperature of 12°C (53°F), with highs reaching up to 26°C (78°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec282834425161646053443629
Data source: Temperature data for Tomterasen 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 Tomterasen

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

September Precipitation Trends in Tomterasen

The chart displays monthly precipitation patterns in Tomterasen, 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 Tomterasen, September typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5154553580799583881079488
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tomterasen

In Tomterasen in September humidity is 86%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting the need for warm, layered clothing while exploring the surroundings.

September Average Humidity in Tomterasen

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

In Tomterasen 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 Tomterasen for better planning.

Maximum UV Index Levels in Tomterasen for September

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

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

This table compares monthly weather conditions in Tomterasen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)51 mm (2.0 inches)94%low
February Weather-2°C (29°F)54 mm (2.1 inches)92%low
March Weather1°C (34°F)55 mm (2.2 inches)89%moderate
April Weather5°C (42°F)35 mm (1.4 inches)82%moderate
May Weather11°C (52°F)80 mm (3.2 inches)73%moderate
June Weather16°C (61°F)79 mm (3.1 inches)71%high
July Weather18°C (64°F)95 mm (3.8 inches)72%high
August Weather16°C (60°F)83 mm (3.3 inches)77%moderate
September Weather12°C (53°F)88 mm (3.5 inches)86%moderate
October Weather7°C (44°F)107 mm (4.2 inches)92%low
November Weather2°C (36°F)94 mm (3.7 inches)93%low
December Weather-1°C (30°F)88 mm (3.4 inches)93%low

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