May Weather in Ermelo, South Africa

Last updated: August 31, 2025

In May, the average temperature in Ermelo, South Africa hovers around 13°C (55°F). You might experience a chill with minimums dropping to -1°C (30°F), though it can warm up to a pleasant 25°C (78°F). Be prepared for some rain, as 20 mm (0.8 in) of precipitation is expected over 2 days, along with an average humidity of 82%.

May Temperature in Ermelo

In May in Ermelo, the average temperature is 13°C (55°F), with maximums reaching 25°C (78°F) and minimums dropping as low as -1°C (30°F). Be sure to pack layers to accommodate the varying temperatures for a comfortable travel experience.

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

The chart illustrates May temperature patterns in Ermelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ermelo, May typically has an average temperature of 13°C (55°F), with highs reaching up to 25°C (78°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Ermelo

In Ermelo in May, the precipitation amount is 20 mm (0.8 in) over the course of 2 days.

May Precipitation Trends in Ermelo

The chart displays monthly precipitation patterns in Ermelo, 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 Ermelo, May typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 2 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Ermelo

In Ermelo in May, humidity is 82%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

May Average Humidity in Ermelo

This chart illustrates the average monthly humidity levels in Ermelo, 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 Ermelo 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 Ermelo

In Ermelo in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Ermelo.

Maximum UV Index Levels in Ermelo for May

The chart shows the monthly maximum UV Index (UVI) for Ermelo 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 Ermelo typically reaches 8, which falls under the very high exposure category.

Data source: Ermelo 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 Ermelo Compares to Other Months

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

This table compares monthly weather conditions in Ermelo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	110 mm (4.3 inches)	79%	extreme
February Weather	18°C (66°F)	122 mm (4.8 inches)	77%	extreme
March Weather	17°C (64°F)	61 mm (2.4 inches)	77%	extreme
April Weather	15°C (60°F)	54 mm (2.1 inches)	81%	very high
May Weather	13°C (55°F)	20 mm (0.8 inches)	82%	very high
June Weather	10°C (50°F)	8 mm (0.3 inches)	73%	high
July Weather	10°C (50°F)	2 mm (0.1 inches)	71%	high
August Weather	13°C (56°F)	5 mm (0.2 inches)	68%	very high
September Weather	16°C (62°F)	25 mm (1.0 inches)	74%	extreme
October Weather	17°C (62°F)	73 mm (2.9 inches)	74%	extreme
November Weather	18°C (64°F)	120 mm (4.7 inches)	82%	extreme
December Weather	18°C (65°F)	212 mm (8.3 inches)	81%	extreme