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September Weather in Ikornnes, Norway

Last updated: August 27, 2025

In Ikornnes, Norway, the average temperature in September hovers around 11°C (53°F). During this time, temperatures can dip to a chilly 4°C (39°F) at night or soar to a pleasant 20°C (67°F) during the day. Expect 272 mm (10.7 in) of rain spread over 20 days, resulting in a high average humidity of 87%. Be prepared for a mix of cool temperatures and plenty of moisture!

September Temperature in Ikornnes

In September, in Ikornnes, the average temperature is 11°C (53°F). The maximum can reach 20°C (67°F), while the minimum can dip as low as 4°C (39°F). Make sure to pack layers for your trip, as temperatures can vary significantly throughout the day.

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

The chart illustrates September temperature patterns in Ikornnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ikornnes, September typically has an average temperature of 11°C (53°F), with highs reaching up to 20°C (67°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec343437414754575752464036
Data source: Temperature data for Ikornnes 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 Ikornnes

In Ikornnes in September, the precipitation amount is 272 mm (10.7 in) over the course of 20 days.

September Precipitation Trends in Ikornnes

The chart displays monthly precipitation patterns in Ikornnes, 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 Ikornnes, September typically receives around 272 mm (10.7 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec17614016215098108122168272271184193
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ikornnes

In Ikornnes in September, humidity is 87%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making it uncomfortable for traveling as it combines the cool air with a sense of heaviness, leaving you yearning for warmth and dryness.

September Average Humidity in Ikornnes

This chart illustrates the average monthly humidity levels in Ikornnes, 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 Ikornnes is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%84%84%84%83%86%87%87%87%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ikornnes

In Ikornnes 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 Ikornnes for better planning.

Maximum UV Index Levels in Ikornnes for September

The chart shows the monthly maximum UV Index (UVI) for Ikornnes 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 Ikornnes typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456654211
Data source: Ikornnes 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 Ikornnes Compares to Other Months

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

This table compares monthly weather conditions in Ikornnes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)176 mm (6.9 inches)85%low
February Weather1°C (34°F)140 mm (5.5 inches)84%low
March Weather3°C (37°F)162 mm (6.4 inches)84%moderate
April Weather5°C (41°F)150 mm (5.9 inches)84%moderate
May Weather8°C (47°F)98 mm (3.9 inches)84%moderate
June Weather12°C (54°F)108 mm (4.2 inches)83%high
July Weather14°C (57°F)121 mm (4.8 inches)86%high
August Weather14°C (57°F)168 mm (6.6 inches)87%moderate
September Weather11°C (53°F)272 mm (10.7 inches)87%moderate
October Weather8°C (46°F)271 mm (10.7 inches)87%low
November Weather4°C (40°F)184 mm (7.2 inches)87%low
December Weather2°C (36°F)193 mm (7.6 inches)84%low

Compare Ikornnes's Climate with Cities Worldwide