September Weather in De Aar, South Africa

Last updated: August 31, 2025

In September, the average temperature in De Aar, South Africa is a pleasant 16°C (61°F). Be prepared for temperature fluctuations, as it can dip as low as -3°C (27°F) or soar up to 34°C (93°F). During this month, anticipate a total precipitation of 7 mm (0.3 in) over about 1 day, and experience an average humidity of 62%.

September Temperature in De Aar

In September in De Aar, the average temperature is 16°C (61°F), with maximums reaching up to 34°C (93°F) and minimums dipping as low as -3°C (27°F). This varied climate makes De Aar an exciting destination for travelers seeking both warm and cool experiences.

September Weather in De Aar: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in De Aar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In De Aar, September typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (93°F) and lows dropping to around -3°C (27°F).

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

September Precipitation in De Aar

In De Aar in September, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in De Aar

The chart displays monthly precipitation patterns in De Aar, 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 De Aar, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 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 De Aar

In De Aar in September, humidity is 62%. With an average temperature of 16°C (61°F), this humidity feels like a gentle blanket, making traveling comfortable yet occasionally sticky, prompting the need for light, breathable clothing to fully enjoy the sights.

September Average Humidity in De Aar

This chart illustrates the average monthly humidity levels in De Aar, 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 De Aar is approximately 62%, 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 De Aar

In De Aar in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in De Aar.

Maximum UV Index Levels in De Aar for September

The chart shows the monthly maximum UV Index (UVI) for De Aar 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 De Aar typically reaches 10, which falls under the very high exposure category.

Data source: De Aar 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 De Aar Compares to Other Months

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

This table compares monthly weather conditions in De Aar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	55 mm (2.2 inches)	68%	extreme
February Weather	24°C (75°F)	50 mm (2.0 inches)	70%	extreme
March Weather	22°C (72°F)	27 mm (1.1 inches)	77%	extreme
April Weather	17°C (64°F)	41 mm (1.6 inches)	81%	very high
May Weather	14°C (57°F)	7 mm (0.3 inches)	81%	high
June Weather	10°C (51°F)	3 mm (0.1 inches)	77%	moderate
July Weather	9°C (49°F)	6 mm (0.2 inches)	70%	moderate
August Weather	11°C (52°F)	4 mm (0.2 inches)	58%	high
September Weather	16°C (61°F)	7 mm (0.3 inches)	62%	very high
October Weather	19°C (66°F)	20 mm (0.8 inches)	58%	extreme
November Weather	21°C (70°F)	20 mm (0.8 inches)	59%	extreme
December Weather	23°C (74°F)	40 mm (1.6 inches)	65%	extreme