September Weather in Borsa, Norway

Last updated: August 27, 2025

In September, the average temperature in Borsa, Norway hovers around 10°C (51°F), with a minimum of 2°C (36°F) and a pleasant maximum of 22°C (71°F). However, be prepared for some rain, as 122 mm (4.8 in) of precipitation is expected over 17 days. The atmosphere can feel quite damp, with an average humidity of 89%.

September Temperature in Borsa

In September in Borsa, the average temperature is 10°C (51°F). Maximums can reach 22°C (71°F), while minimums can drop as low as 2°C (36°F). This variation makes it a great time for travelers to enjoy mild weather while exploring the sights.

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

The chart illustrates September temperature patterns in Borsa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Borsa, September typically has an average temperature of 10°C (51°F), with highs reaching up to 22°C (71°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Borsa

In Borsa in September, the precipitation amount is 122 mm (4.8 in) spread over the course of 17 days.

September Precipitation Trends in Borsa

The chart displays monthly precipitation patterns in Borsa, 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 Borsa, September typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 17 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 Borsa

In Borsa in September humidity is 89%. With an average temperature of 10°C (51°F), this humidity feels like traveling through a thick fog, where the damp air clings to your skin, making the coolness feel even chillier and adding an element of discomfort to your adventures.

September Average Humidity in Borsa

This chart illustrates the average monthly humidity levels in Borsa, 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 Borsa is approximately 89%, 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 Borsa

In Borsa 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 Borsa, you can check the information here.

Maximum UV Index Levels in Borsa for September

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

Data source: Borsa 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 Borsa Compares to Other Months

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

This table compares monthly weather conditions in Borsa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	98 mm (3.9 inches)	93%	low
February Weather	-2°C (28°F)	78 mm (3.1 inches)	92%	low
March Weather	0°C (33°F)	114 mm (4.5 inches)	89%	moderate
April Weather	4°C (39°F)	102 mm (4.0 inches)	84%	moderate
May Weather	8°C (47°F)	78 mm (3.1 inches)	81%	moderate
June Weather	13°C (56°F)	99 mm (3.9 inches)	81%	high
July Weather	15°C (59°F)	101 mm (4.0 inches)	81%	high
August Weather	13°C (57°F)	130 mm (5.1 inches)	87%	moderate
September Weather	10°C (51°F)	122 mm (4.8 inches)	89%	moderate
October Weather	6°C (43°F)	132 mm (5.2 inches)	91%	low
November Weather	1°C (34°F)	88 mm (3.5 inches)	92%	low
December Weather	-1°C (30°F)	110 mm (4.3 inches)	94%	low