May Weather in Randburg, South Africa

Last updated: August 31, 2025

In May, the average temperature in Randburg, South Africa is a comfortable 14°C (58°F). However, temperatures can vary significantly, with minimums dropping to -1°C (31°F) and maximums reaching up to 27°C (80°F). Expect some moisture in the air, as precipitation averages at 10 mm (0.4 in) over the course of 1 day, and enjoy the lush surroundings fostered by an average humidity level of 82%.

May Temperature in Randburg

In May in Randburg, the average temperature is 14°C (58°F). Maximum temperatures can reach 27°C (80°F), while minimums can dip as low as -1°C (31°F). Travelers should be prepared for a wide range of temperatures during this time.

May Weather in Randburg: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Randburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Randburg, May typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (80°F) and lows dropping to around -1°C (31°F).

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

May Precipitation in Randburg

In Randburg in May, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

May Precipitation Trends in Randburg

The chart displays monthly precipitation patterns in Randburg, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Randburg, May typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Randburg

In Randburg in May, humidity is 82%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and sticky.

May Average Humidity in Randburg

This chart illustrates the average monthly humidity levels in Randburg, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Randburg is approximately 82%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Randburg

In Randburg in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Randburg.

Maximum UV Index Levels in Randburg for May

The chart shows the monthly maximum UV Index (UVI) for Randburg in May, 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 May, the maximum UV index in Randburg typically reaches 7, which falls under the high exposure category.

Data source: Randburg May 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 May Weather in Randburg Compares to Other Months

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

This table compares monthly weather conditions in Randburg, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (71°F)	118 mm (4.7 inches)	79%	extreme
February Weather	21°C (70°F)	122 mm (4.8 inches)	77%	extreme
March Weather	20°C (68°F)	71 mm (2.8 inches)	77%	extreme
April Weather	17°C (63°F)	50 mm (2.0 inches)	81%	very high
May Weather	14°C (58°F)	10 mm (0.4 inches)	82%	high
June Weather	11°C (53°F)	6 mm (0.2 inches)	73%	high
July Weather	11°C (52°F)	2 mm (0.1 inches)	71%	high
August Weather	14°C (58°F)	2 mm (0.1 inches)	68%	very high
September Weather	18°C (65°F)	6 mm (0.2 inches)	74%	extreme
October Weather	19°C (67°F)	52 mm (2.0 inches)	74%	extreme
November Weather	21°C (70°F)	77 mm (3.0 inches)	82%	extreme
December Weather	21°C (70°F)	131 mm (5.2 inches)	81%	extreme