August Weather in Thornhill, South Africa

Last updated: August 31, 2025

In Thornhill, South Africa, the average temperature in August hovers around 15°C (59°F). Expect a minimum of 7°C (45°F) and a maximum that can reach up to 29°C (84°F). Be prepared for some rain, as the area receives around 53 mm (2.1 in) of precipitation typically over 8 days. With an average humidity of 72%, make sure to dress accordingly for the season!

August Temperature in Thornhill

In August in Thornhill, the average temperature is 15°C (59°F). Maximum temperatures can reach up to 29°C (84°F), while minimums can drop as low as 7°C (45°F). This makes it a great time for travelers to enjoy mild weather and outdoor activities.

August Weather in Thornhill: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Thornhill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thornhill, August typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around 7°C (45°F).

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

August Precipitation in Thornhill

In Thornhill in August, the total precipitation amount is 53 mm (2.1 in) over the course of 8 days.

August Precipitation Trends in Thornhill

The chart displays monthly precipitation patterns in Thornhill, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Thornhill, August typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Thornhill

In Thornhill in August humidity is 72%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket wrapping around you, creating a sultry atmosphere that can make traveling a bit uncomfortable. The stickiness in the air can leave you feeling sluggish, so it’s advisable to stay hydrated and take breaks often while exploring.

August Average Humidity in Thornhill

This chart illustrates the average monthly humidity levels in Thornhill, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Thornhill is approximately 72%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Thornhill

In Thornhill in August, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Thornhill, you can refer to this Hourly UV Index in Thornhill.

Maximum UV Index Levels in Thornhill for August

The chart shows the monthly maximum UV Index (UVI) for Thornhill in August, 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 August, the maximum UV index in Thornhill typically reaches 6, which falls under the high exposure category.

Data source: Thornhill August 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 August Weather in Thornhill Compares to Other Months

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

This table compares monthly weather conditions in Thornhill, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	28 mm (1.1 inches)	79%	extreme
February Weather	21°C (70°F)	48 mm (1.9 inches)	81%	extreme
March Weather	20°C (69°F)	43 mm (1.7 inches)	83%	extreme
April Weather	18°C (65°F)	28 mm (1.1 inches)	80%	very high
May Weather	17°C (63°F)	31 mm (1.2 inches)	76%	moderate
June Weather	16°C (62°F)	19 mm (0.7 inches)	72%	moderate
July Weather	16°C (60°F)	33 mm (1.3 inches)	74%	moderate
August Weather	15°C (59°F)	53 mm (2.1 inches)	72%	high
September Weather	16°C (61°F)	42 mm (1.6 inches)	75%	very high
October Weather	17°C (63°F)	38 mm (1.5 inches)	76%	extreme
November Weather	18°C (65°F)	47 mm (1.9 inches)	76%	extreme
December Weather	20°C (67°F)	48 mm (1.9 inches)	78%	extreme