September Weather in Steinkjer, Norway

Last updated: August 27, 2025

In September, the average temperature in Steinkjer, Norway hovers around 11°C (52°F), with a minimum dipping to 3°C (38°F) and a maximum reaching 20°C (68°F). Expect around 142 mm (5.6 in) of precipitation spread over about 18 days, coupled with a high average humidity of 90%—so be prepared for a damp but mild experience!

September Temperature in Steinkjer

In September in Steinkjer, the average temperature is 11°C (52°F), with maximums reaching 20°C (68°F) and minimums dipping as low as 3°C (38°F). This makes it a great time for travelers to enjoy mild weather while exploring the sights.

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

The chart illustrates September temperature patterns in Steinkjer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Steinkjer, September typically has an average temperature of 11°C (52°F), with highs reaching up to 20°C (68°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Steinkjer generated using information from the Copernicus Climate Change Service.

September Precipitation in Steinkjer

In Steinkjer in September, the precipitation amount is 142 mm (5.6 in) spread over 18 days.

September Precipitation Trends in Steinkjer

The chart displays monthly precipitation patterns in Steinkjer, 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 Steinkjer, September typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Steinkjer

In Steinkjer in September, humidity is 90%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket that clings to your skin, making travel uncomfortable and muggy.

September Average Humidity in Steinkjer

This chart illustrates the average monthly humidity levels in Steinkjer, 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 Steinkjer is approximately 90%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Steinkjer

In Steinkjer in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Steinkjer, you can check the information here.

Maximum UV Index Levels in Steinkjer for September

The chart shows the monthly maximum UV Index (UVI) for Steinkjer 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 Steinkjer typically reaches 3, which falls under the moderate exposure category.

Data source: Steinkjer 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 Steinkjer Compares to Other Months

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

This table compares monthly weather conditions in Steinkjer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	105 mm (4.1 inches)	96%	low
February Weather	-2°C (29°F)	75 mm (3.0 inches)	94%	low
March Weather	0°C (33°F)	113 mm (4.4 inches)	91%	low
April Weather	4°C (40°F)	96 mm (3.8 inches)	86%	moderate
May Weather	9°C (48°F)	68 mm (2.7 inches)	83%	moderate
June Weather	14°C (57°F)	94 mm (3.7 inches)	81%	high
July Weather	16°C (60°F)	84 mm (3.3 inches)	81%	high
August Weather	14°C (58°F)	120 mm (4.7 inches)	88%	moderate
September Weather	11°C (52°F)	142 mm (5.6 inches)	90%	moderate
October Weather	6°C (43°F)	114 mm (4.5 inches)	93%	low
November Weather	2°C (35°F)	93 mm (3.6 inches)	95%	low
December Weather	-1°C (31°F)	99 mm (3.9 inches)	97%	low