September Weather in Troim, Norway

Last updated: August 27, 2025

In Troim, Norway during September, the average temperature hovers around 7°C (45°F), with a minimum dipping to -2°C (29°F) and a maximum reaching 20°C (68°F). Expect considerable precipitation with an average of 126 mm (5.0 in) spread over 17 days. The atmosphere is quite humid, with an average humidity of 92%, making for a typically chilly and damp climate.

September Temperature in Troim

In September in Troim, the average temperature is 7°C (45°F). Maximums can reach 20°C (68°F) and minimums can drop as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm and chilly weather.

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

The chart illustrates September temperature patterns in Troim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Troim, September typically has an average temperature of 7°C (45°F), with highs reaching up to 20°C (68°F) and lows dropping to around -2°C (29°F).

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

September Precipitation in Troim

In Troim in September, the precipitation amount is 126 mm (5.0 in) over a duration of 17 days.

September Precipitation Trends in Troim

The chart displays monthly precipitation patterns in Troim, 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 Troim, September typically receives around 126 mm (5.0 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 Troim

In Troim in September, humidity is 92%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities feel heavier and less enjoyable for traveling.

September Average Humidity in Troim

This chart illustrates the average monthly humidity levels in Troim, 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 Troim is approximately 92%, 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 Troim

In Troim 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 Troim for better planning.

Maximum UV Index Levels in Troim for September

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

Data source: Troim 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 Troim Compares to Other Months

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

This table compares monthly weather conditions in Troim, 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)	62 mm (2.4 inches)	99%	low
February Weather	-7°C (20°F)	59 mm (2.3 inches)	97%	low
March Weather	-4°C (25°F)	67 mm (2.6 inches)	94%	moderate
April Weather	0°C (32°F)	50 mm (2.0 inches)	89%	moderate
May Weather	5°C (41°F)	71 mm (2.8 inches)	85%	high
June Weather	11°C (52°F)	106 mm (4.2 inches)	82%	high
July Weather	12°C (55°F)	100 mm (3.9 inches)	84%	high
August Weather	11°C (51°F)	115 mm (4.5 inches)	89%	moderate
September Weather	7°C (45°F)	126 mm (5.0 inches)	92%	moderate
October Weather	2°C (36°F)	124 mm (4.9 inches)	96%	low
November Weather	-3°C (27°F)	92 mm (3.6 inches)	97%	low
December Weather	-6°C (21°F)	101 mm (4.0 inches)	99%	low