September Weather in Ornes, Norway

Last updated: August 27, 2025

In September, the average temperature in Ornes, Norway hovers around 8°C (47°F). Be prepared for a range of conditions, as temperatures can dip to a chilly -1°C (30°F) or rise to a pleasant 18°C (65°F). Expect considerable precipitation, with about 238 mm (9.4 in) falling over 20 days, and the air will feel quite humid, with an average humidity of 87%.

September Temperature in Ornes

In September in Ornes, the average temperature is 8°C (47°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as -1°C (30°F). Be prepared for a mix of cool and mild weather, making it a great time for layered clothing during your travels.

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

The chart illustrates September temperature patterns in Ornes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ornes, September typically has an average temperature of 8°C (47°F), with highs reaching up to 18°C (65°F) and lows dropping to around -1°C (30°F).

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

September Precipitation in Ornes

In Ornes in September, the precipitation amount is 238 mm (9.4 in) spread over 20 days.

September Precipitation Trends in Ornes

The chart displays monthly precipitation patterns in Ornes, 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 Ornes, September typically receives around 238 mm (9.4 inches) of precipitation spread over approximately 20 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 Ornes

In Ornes in September, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

September Average Humidity in Ornes

This chart illustrates the average monthly humidity levels in Ornes, 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 Ornes is approximately 87%, 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 Ornes

In Ornes 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 Ornes, you can check the information here.

Maximum UV Index Levels in Ornes for September

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

Data source: Ornes 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 Ornes Compares to Other Months

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

This table compares monthly weather conditions in Ornes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	229 mm (9.0 inches)	88%	low
February Weather	-4°C (25°F)	169 mm (6.6 inches)	87%	low
March Weather	-2°C (28°F)	252 mm (9.9 inches)	85%	low
April Weather	0°C (33°F)	187 mm (7.4 inches)	83%	moderate
May Weather	3°C (39°F)	112 mm (4.4 inches)	77%	moderate
June Weather	9°C (48°F)	163 mm (6.4 inches)	79%	moderate
July Weather	12°C (55°F)	161 mm (6.3 inches)	82%	high
August Weather	11°C (53°F)	205 mm (8.1 inches)	84%	moderate
September Weather	8°C (47°F)	238 mm (9.4 inches)	87%	moderate
October Weather	3°C (38°F)	203 mm (8.0 inches)	88%	low
November Weather	0°C (32°F)	204 mm (8.0 inches)	87%	low
December Weather	-3°C (27°F)	187 mm (7.4 inches)	87%	low