December Weather in Mariental, Namibia

Last updated: August 31, 2025

In Mariental, Namibia, the average temperature in December hovers around 28°C (83°F), with a minimum of 11°C (52°F) and a maximum reaching 40°C (104°F). During this period, enjoy a light rainfall of approximately 36 mm (1.4 in) spread over just 3 days. The average humidity sits comfortably at 37%, making for a pleasant atmosphere.

December Temperature in Mariental

In December in Mariental, the average temperature is 28°C (83°F). Maximums can reach 40°C (104°F) and minimums can be as low as 11°C (52°F). It's essential to pack accordingly for both warm days and cooler evenings when traveling during this time.

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

The chart illustrates December temperature patterns in Mariental, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariental, December typically has an average temperature of 28°C (83°F), with highs reaching up to 40°C (104°F) and lows dropping to around 11°C (52°F).

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

December Precipitation in Mariental

In Mariental in December, the precipitation amount is 36 mm (1.4 in) over a period of 3 days.

December Precipitation Trends in Mariental

The chart displays monthly precipitation patterns in Mariental, 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 Mariental, December typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 3 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 Mariental

In Mariental in December humidity is 37%. With an average temperature of 28°C (83°F), this humidity feels like an invigorating breeze, making it comfortable for traveling and exploring the vibrant sights and sounds of the area.

December Average Humidity in Mariental

This chart illustrates the average monthly humidity levels in Mariental, 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 Mariental is approximately 37%, 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 Mariental

In Mariental 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 Mariental.

Maximum UV Index Levels in Mariental for December

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

Data source: Mariental 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 Mariental Compares to Other Months

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

This table compares monthly weather conditions in Mariental, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	29°C (84°F)	46 mm (1.8 inches)	45%	extreme
February Weather	27°C (82°F)	60 mm (2.3 inches)	52%	extreme
March Weather	27°C (80°F)	27 mm (1.1 inches)	60%	extreme
April Weather	23°C (74°F)	16 mm (0.6 inches)	68%	extreme
May Weather	20°C (67°F)	1 mm (0.0 inches)	65%	very high
June Weather	16°C (61°F)	0 mm (0.0 inches)	52%	high
July Weather	15°C (59°F)	2 mm (0.1 inches)	42%	high
August Weather	16°C (62°F)	0 mm (0.0 inches)	31%	very high
September Weather	22°C (71°F)	1 mm (0.0 inches)	25%	extreme
October Weather	24°C (76°F)	6 mm (0.2 inches)	25%	extreme
November Weather	27°C (81°F)	2 mm (0.1 inches)	29%	extreme
December Weather	28°C (83°F)	36 mm (1.4 inches)	37%	extreme