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September Weather in Mjondalen, Norway

Last updated: August 27, 2025

In Mjondalen, Norway, the average temperature for September hovers around 12°C (53°F). Expect a range where the minimum dips to 1°C (34°F) and the maximum can reach 25°C (77°F). During this month, precipitation is around 117 mm (4.6 in) across approximately 12 days, while humidity remains relatively high at 86%. Stay prepared for a mix of cool, damp days and warmer spells!

September Temperature in Mjondalen

In September in Mjondalen, the average temperature is 12°C (53°F). Maximums can reach 25°C (77°F), and minimums can be as low as 1°C (34°F). This pleasant climate makes it an ideal time for exploring Mjondalen and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Mjondalen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mjondalen, September typically has an average temperature of 12°C (53°F), with highs reaching up to 25°C (77°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec252732405060636053443527
Data source: Temperature data for Mjondalen 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 Mjondalen

In Mjondalen in September, the total precipitation amount is 117 mm (4.6 in), occurring over a span of 12 days.

September Precipitation Trends in Mjondalen

The chart displays monthly precipitation patterns in Mjondalen, 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 Mjondalen, September typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec66707444899910395117137105118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mjondalen

In Mjondalen 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 Mjondalen

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

In Mjondalen 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 Mjondalen for better planning.

Maximum UV Index Levels in Mjondalen for September

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

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

This table compares monthly weather conditions in Mjondalen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)66 mm (2.6 inches)93%low
February Weather-3°C (27°F)70 mm (2.8 inches)91%low
March Weather0°C (32°F)74 mm (2.9 inches)88%moderate
April Weather5°C (41°F)43 mm (1.7 inches)83%moderate
May Weather10°C (50°F)89 mm (3.5 inches)75%moderate
June Weather16°C (60°F)99 mm (3.9 inches)74%high
July Weather17°C (63°F)103 mm (4.1 inches)74%high
August Weather15°C (60°F)95 mm (3.7 inches)78%moderate
September Weather12°C (53°F)117 mm (4.6 inches)86%moderate
October Weather6°C (44°F)137 mm (5.4 inches)92%low
November Weather2°C (35°F)105 mm (4.1 inches)92%low
December Weather-3°C (27°F)118 mm (4.7 inches)92%low

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