May Weather in Welkom, South Africa

Last updated: August 31, 2025

In Welkom, South Africa, the average temperature in May hovers around 13°C (56°F). Be prepared for chilly nights, as temperatures can drop to a minimum of -3°C (27°F), while daytime highs can reach up to 26°C (79°F). Expect some dampness too, with an average precipitation of 9 mm (0.3 in) occurring over about 1 day. The air can feel quite humid, with an average humidity level of 84%, making it feel cooler than it is!

May Temperature in Welkom

In May in Welkom, the average temperature is 13°C (56°F). Maximums can reach 26°C (79°F), and minimums can be as low as -3°C (27°F). Be sure to pack layers to prepare for both warm days and chilly evenings while exploring!

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

The chart illustrates May temperature patterns in Welkom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Welkom, May typically has an average temperature of 13°C (56°F), with highs reaching up to 26°C (79°F) and lows dropping to around -3°C (27°F).

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

May Precipitation in Welkom

In Welkom in May, the precipitation amount is 9 mm (0.3 in) over the course of 1 day.

May Precipitation Trends in Welkom

The chart displays monthly precipitation patterns in Welkom, 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 Welkom, May typically receives around 9 mm (0.3 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 Welkom

In Welkom in May, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.

May Average Humidity in Welkom

This chart illustrates the average monthly humidity levels in Welkom, 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 Welkom is approximately 84%, 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 Welkom

In Welkom 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 Welkom.

Maximum UV Index Levels in Welkom for May

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

Data source: Welkom 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 Welkom Compares to Other Months

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

This table compares monthly weather conditions in Welkom, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	88 mm (3.4 inches)	75%	extreme
February Weather	22°C (72°F)	130 mm (5.1 inches)	74%	extreme
March Weather	21°C (69°F)	63 mm (2.5 inches)	79%	extreme
April Weather	17°C (63°F)	72 mm (2.8 inches)	83%	very high
May Weather	13°C (56°F)	9 mm (0.3 inches)	84%	high
June Weather	10°C (50°F)	7 mm (0.3 inches)	79%	moderate
July Weather	10°C (50°F)	2 mm (0.1 inches)	69%	high
August Weather	13°C (55°F)	14 mm (0.6 inches)	60%	very high
September Weather	17°C (64°F)	9 mm (0.4 inches)	63%	extreme
October Weather	20°C (68°F)	37 mm (1.5 inches)	61%	extreme
November Weather	22°C (71°F)	56 mm (2.2 inches)	67%	extreme
December Weather	23°C (73°F)	100 mm (3.9 inches)	75%	extreme