September Weather in Alen, Norway

Last updated: August 27, 2025

In September, the average temperature in Alen, Norway is a cool 7°C (45°F), with a minimum dipping to -5°C (23°F) and a maximum soaring to 19°C (66°F). Expect precipitation of about 88 mm (3.4 in) over 17 days, accompanied by a high average humidity of 90%.

September Temperature in Alen

In September in Alen, the average temperature is 7°C (45°F), with maximums reaching 19°C (66°F) and minimums dropping as low as -5°C (23°F). This weather makes it essential for travelers to pack layers and be prepared for fluctuating temperatures.

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

The chart illustrates September temperature patterns in Alen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alen, September typically has an average temperature of 7°C (45°F), with highs reaching up to 19°C (66°F) and lows dropping to around -5°C (23°F).

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

September Precipitation in Alen

In Alen in September, the total precipitation amount is 88 mm (3.4 in), occurring over a span of 17 days.

September Precipitation Trends in Alen

The chart displays monthly precipitation patterns in Alen, 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 Alen, September typically receives around 88 mm (3.4 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Alen

In Alen in September humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.

September Average Humidity in Alen

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

In Alen 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 Alen for better planning.

Maximum UV Index Levels in Alen for September

The chart shows the monthly maximum UV Index (UVI) for Alen 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 Alen typically reaches 4, which falls under the moderate exposure category.

Data source: Alen 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 Alen Compares to Other Months

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

This table compares monthly weather conditions in Alen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	71 mm (2.8 inches)	96%	low
February Weather	-6°C (21°F)	54 mm (2.1 inches)	94%	low
March Weather	-4°C (26°F)	84 mm (3.3 inches)	91%	moderate
April Weather	0°C (31°F)	80 mm (3.1 inches)	86%	moderate
May Weather	5°C (41°F)	69 mm (2.7 inches)	83%	high
June Weather	11°C (52°F)	95 mm (3.7 inches)	81%	high
July Weather	12°C (54°F)	95 mm (3.7 inches)	81%	high
August Weather	10°C (51°F)	119 mm (4.7 inches)	88%	moderate
September Weather	7°C (45°F)	88 mm (3.4 inches)	90%	moderate
October Weather	2°C (36°F)	103 mm (4.1 inches)	93%	low
November Weather	-3°C (27°F)	67 mm (2.6 inches)	95%	low
December Weather	-5°C (23°F)	81 mm (3.2 inches)	97%	low