December Weather in Welkom, South Africa

Last updated: August 31, 2025

In Welkom, South Africa, the average temperature in December hovers around 23°C (73°F). However, don’t be surprised by the temperature range—it can dip to a chilly 10°C (50°F) or soar up to a sweltering 38°C (100°F). During this month, you can expect about 100 mm (3.9 in) of precipitation spread over 15 days, with an average humidity level of 75%. Ideal for those who enjoy a touch of humidity in the air!

December Temperature in Welkom

In December in Welkom, the average temperature is 23°C (73°F). Maximum temperatures can reach 38°C (100°F), while minimums can drop to as low as 10°C (50°F). This makes Welkom an ideal destination for travelers looking to enjoy warm weather while being prepared for cooler evenings.

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

The chart illustrates December 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, December typically has an average temperature of 23°C (73°F), with highs reaching up to 38°C (100°F) and lows dropping to around 10°C (50°F).

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

December Precipitation in Welkom

In Welkom in December, the precipitation amount is 100 mm (3.9 in) over a span of 15 days.

December Precipitation Trends in Welkom

The chart displays monthly precipitation patterns in Welkom, 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 Welkom, December typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 15 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Welkom

In Welkom in December, humidity is 75%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel slightly uncomfortable yet invigorating as the air wraps around you, creating a sense of walking through a lush, tropical paradise.

December Average Humidity in Welkom

This chart illustrates the average monthly humidity levels in Welkom, 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 Welkom is approximately 75%, 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 Welkom

In Welkom 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 Welkom.

Maximum UV Index Levels in Welkom for December

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

Data source: Welkom 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 Welkom Compares to Other Months

Weather in Welkom varies notably across the year, with each month offering distinct climate conditions. This page compares December’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 December’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