September Weather in Sandsli, Norway

Last updated: August 27, 2025

In September, the average temperature in Sandsli, Norway is a mild 13°C (55°F), where you can expect minimums of 5°C (42°F) and maximums of 21°C (70°F). With 288 mm (11.3 in) of rainfall spread over 18 days, it's essential to prepare for moisture; the average humidity is a high 93%.

September Temperature in Sandsli

In September in Sandsli, the average temperature is 13°C (55°F). Maximums can reach 21°C (70°F), while minimums can dip as low as 5°C (42°F). This mild climate makes Sandsli a perfect destination for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Sandsli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sandsli, September typically has an average temperature of 13°C (55°F), with highs reaching up to 21°C (70°F) and lows dropping to around 5°C (42°F).

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

September Precipitation in Sandsli

In Sandsli in September, the precipitation amount is 288 mm (11.3 in) spread over 18 days.

September Precipitation Trends in Sandsli

The chart displays monthly precipitation patterns in Sandsli, 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 Sandsli, September typically receives around 288 mm (11.3 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 Sandsli

In Sandsli in September, humidity is 93%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making it uncomfortable for traveling as it can leave you feeling sticky and fatigued.

September Average Humidity in Sandsli

This chart illustrates the average monthly humidity levels in Sandsli, 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 Sandsli is approximately 93%, 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 Sandsli

In Sandsli 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 Sandsli for better planning.

Maximum UV Index Levels in Sandsli for September

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

Data source: Sandsli 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 Sandsli Compares to Other Months

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

This table compares monthly weather conditions in Sandsli, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	179 mm (7.0 inches)	98%	low
February Weather	3°C (37°F)	191 mm (7.5 inches)	96%	low
March Weather	4°C (40°F)	184 mm (7.3 inches)	94%	moderate
April Weather	7°C (44°F)	112 mm (4.4 inches)	89%	moderate
May Weather	10°C (50°F)	81 mm (3.2 inches)	86%	moderate
June Weather	14°C (57°F)	142 mm (5.6 inches)	83%	high
July Weather	15°C (59°F)	137 mm (5.4 inches)	87%	high
August Weather	15°C (59°F)	253 mm (10.0 inches)	91%	moderate
September Weather	13°C (55°F)	288 mm (11.3 inches)	93%	moderate
October Weather	9°C (49°F)	339 mm (13.3 inches)	95%	low
November Weather	6°C (43°F)	229 mm (9.0 inches)	97%	low
December Weather	4°C (39°F)	241 mm (9.5 inches)	97%	low