December Weather in Ermelo, South Africa

Last updated: August 31, 2025

In December, the average temperature in Ermelo, South Africa is a pleasant 18°C (65°F). However, temperatures can vary significantly, with a minimum of 8°C (46°F) and reaching a maximum of 32°C (90°F). Be prepared for 212 mm (8.3 in) of precipitation over approximately 20 days, and expect high humidity levels at 81%.

December Temperature in Ermelo

In December in Ermelo, the average temperature is 18°C (65°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 8°C (46°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates December 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, December typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 8°C (46°F).

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

December Precipitation in Ermelo

In Ermelo in December, the precipitation amount is 212 mm (8.3 in) over a span of 20 days.

December Precipitation Trends in Ermelo

The chart displays monthly precipitation patterns in Ermelo, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ermelo, December typically receives around 212 mm (8.3 inches) of precipitation spread over approximately 20 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Ermelo

In Ermelo in December, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

December Average Humidity in Ermelo

This chart illustrates the average monthly humidity levels in Ermelo, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ermelo is approximately 81%, offering insight into how humid the weather typically is during this month.

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

December UV Index in Ermelo

In Ermelo in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Ermelo.

Maximum UV Index Levels in Ermelo for December

The chart shows the monthly maximum UV Index (UVI) for Ermelo in December, 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 December, the maximum UV index in Ermelo typically reaches 16, which falls under the extreme exposure category.

Data source: Ermelo December 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 December 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 December’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 December’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