July Weather in Thornhill, South Africa

Last updated: August 31, 2025

In July, the average temperature in Thornhill, South Africa hovers around 16°C (60°F), with the thermometer dipping as low as 8°C (46°F) and climbing up to a warm 28°C (83°F). Expect 33 mm (1.3 in) of rain spread over 5 days, and keep in mind that the relative humidity averages around 74%.

July Temperature in Thornhill

In July in Thornhill, the average temperature is 16°C (60°F), with maximums reaching 28°C (83°F) and minimums dropping as low as 8°C (46°F). This pleasant climate makes it an ideal time for exploring and enjoying outdoor activities in Thornhill.

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

The chart illustrates July 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, July typically has an average temperature of 16°C (60°F), with highs reaching up to 28°C (83°F) and lows dropping to around 8°C (46°F).

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

July Precipitation in Thornhill

In Thornhill in July, the precipitation amount is 33 mm (1.3 in) over the course of 5 days.

July Precipitation Trends in Thornhill

The chart displays monthly precipitation patterns in Thornhill, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Thornhill, July typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Thornhill

In Thornhill in July humidity is 74%. With an average temperature of 16°C (60°F), this humidity feels like a damp blanket enveloping you, making traveling a bit uncomfortable as you navigate the sticky air and potentially limiting your energy for exploring the sights.

July Average Humidity in Thornhill

This chart illustrates the average monthly humidity levels in Thornhill, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Thornhill is approximately 74%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Thornhill

In Thornhill in July, 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 Thornhill for better planning.

Maximum UV Index Levels in Thornhill for July

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

Data source: Thornhill July 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 July 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 July’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 July’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