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September Weather in Jessheim, Norway

Last updated: August 27, 2025

In Jessheim, Norway, the average temperature during September hovers around 11°C (52°F), with lows dipping to -1°C (30°F) and highs reaching 25°C (77°F). Expect 94 mm (3.7 in) of precipitation over 12 days, contributing to an average humidity level of 91%.

September Temperature in Jessheim

In September in Jessheim, the average temperature is 11°C (52°F). The maximum can reach 25°C (77°F), while the minimum can be as low as -1°C (30°F). Be prepared for a mix of cool days and warmer afternoons, making it a great time to explore both indoors and outdoors.

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

The chart illustrates September temperature patterns in Jessheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jessheim, September typically has an average temperature of 11°C (52°F), with highs reaching up to 25°C (77°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec272733415060635952433528
Data source: Temperature data for Jessheim 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 Jessheim

In Jessheim in September, the precipitation amount is 94 mm (3.7 in) spread over 12 days.

September Precipitation Trends in Jessheim

The chart displays monthly precipitation patterns in Jessheim, 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 Jessheim, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec54565738858494939411810497
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jessheim

In Jessheim 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 Jessheim

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

In Jessheim 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 Jessheim for better planning.

Maximum UV Index Levels in Jessheim for September

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

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

This table compares monthly weather conditions in Jessheim, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)54 mm (2.1 inches)98%low
February Weather-3°C (27°F)56 mm (2.2 inches)95%low
March Weather1°C (33°F)57 mm (2.3 inches)92%moderate
April Weather5°C (41°F)38 mm (1.5 inches)88%moderate
May Weather10°C (51°F)85 mm (3.4 inches)84%moderate
June Weather16°C (61°F)84 mm (3.3 inches)82%high
July Weather17°C (63°F)94 mm (3.7 inches)82%high
August Weather15°C (59°F)93 mm (3.7 inches)87%moderate
September Weather11°C (52°F)94 mm (3.7 inches)91%moderate
October Weather6°C (43°F)118 mm (4.7 inches)95%low
November Weather1°C (35°F)104 mm (4.1 inches)97%low
December Weather-2°C (29°F)97 mm (3.8 inches)98%low

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