July Weather in Williston, South Africa

Last updated: August 31, 2025

In July, the average temperature in Williston, South Africa is a comfortable 10°C (51°F). Expect a range from a chilly -4°C (24°F) to a pleasant 26°C (79°F). With 8 mm (0.3 in) of precipitation spread over 2 days, the climate is relatively mild, accompanied by an average humidity of 73%. Perfect for exploring!

July Temperature in Williston

In July in Williston, the average temperature is 10°C (51°F), with maximums reaching up to 26°C (79°F) and minimums plummeting to as low as -4°C (24°F). This varied climate makes it essential to pack layers for your trip to fully enjoy everything the destination has to offer.

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

The chart illustrates July temperature patterns in Williston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williston, July typically has an average temperature of 10°C (51°F), with highs reaching up to 26°C (79°F) and lows dropping to around -4°C (24°F).

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

July Precipitation in Williston

In Williston in July, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

July Precipitation Trends in Williston

The chart displays monthly precipitation patterns in Williston, 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 Williston, July typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Williston

In Williston in July, humidity is 73%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that can make outdoor activities uncomfortable, causing your clothes to cling to your skin and a persistent coolness that seeps into your bones, which might deter long excursions without proper layering.

July Average Humidity in Williston

This chart illustrates the average monthly humidity levels in Williston, 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 Williston is approximately 73%, 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 Williston

In Williston in July, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Williston.

Maximum UV Index Levels in Williston for July

The chart shows the monthly maximum UV Index (UVI) for Williston 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 Williston typically reaches 5, which falls under the moderate exposure category.

Data source: Williston 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 Williston Compares to Other Months

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

This table compares monthly weather conditions in Williston, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	10 mm (0.4 inches)	50%	extreme
February Weather	25°C (78°F)	11 mm (0.4 inches)	55%	extreme
March Weather	23°C (73°F)	15 mm (0.6 inches)	65%	extreme
April Weather	18°C (65°F)	28 mm (1.1 inches)	72%	very high
May Weather	15°C (59°F)	6 mm (0.2 inches)	78%	high
June Weather	11°C (53°F)	5 mm (0.2 inches)	79%	moderate
July Weather	10°C (51°F)	8 mm (0.3 inches)	73%	moderate
August Weather	11°C (52°F)	2 mm (0.1 inches)	64%	high
September Weather	15°C (60°F)	5 mm (0.2 inches)	58%	extreme
October Weather	19°C (66°F)	13 mm (0.5 inches)	53%	extreme
November Weather	21°C (70°F)	6 mm (0.2 inches)	42%	extreme
December Weather	23°C (74°F)	11 mm (0.5 inches)	44%	extreme