December Weather in Big Bend, Eswatini

Last updated: August 23, 2025

In December, the average temperature in Big Bend, Eswatini hovers around 25°C (77°F). However, you can expect fluctuations, with minimums dipping to 15°C (60°F) and maximums soaring up to 40°C (104°F). During this month, precipitation is moderate, totaling approximately 85 mm (3.4 in) across 12 days, coupled with an average humidity level of 84%.

December Temperature in Big Bend

In December in Big Bend, the average temperature is 25°C (77°F). The maximum can reach 40°C (104°F) and the minimum can be as low as 15°C (60°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while also being prepared for warmer days.

December Weather in Big Bend: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Big Bend, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Big Bend, December typically has an average temperature of 25°C (77°F), with highs reaching up to 40°C (104°F) and lows dropping to around 15°C (60°F).

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

December Precipitation in Big Bend

In Big Bend in December, the precipitation amount is 85 mm (3.4 in) over the course of 12 days.

December Precipitation Trends in Big Bend

The chart displays monthly precipitation patterns in Big Bend, 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 Big Bend, December typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 12 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 Big Bend

In Big Bend in December, humidity is 84%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities challenging and prompting travelers to seek shade and stay hydrated.

December Average Humidity in Big Bend

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

In Big Bend in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Big Bend, you can check here.

Maximum UV Index Levels in Big Bend for December

The chart shows the monthly maximum UV Index (UVI) for Big Bend 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 Big Bend typically reaches 14, which falls under the extreme exposure category.

Data source: Big Bend 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 Big Bend Compares to Other Months

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

This table compares monthly weather conditions in Big Bend, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	93 mm (3.7 inches)	82%	extreme
February Weather	25°C (78°F)	143 mm (5.6 inches)	81%	extreme
March Weather	25°C (77°F)	73 mm (2.9 inches)	80%	extreme
April Weather	23°C (73°F)	37 mm (1.5 inches)	82%	very high
May Weather	20°C (69°F)	18 mm (0.7 inches)	86%	high
June Weather	18°C (65°F)	17 mm (0.7 inches)	78%	moderate
July Weather	18°C (65°F)	3 mm (0.1 inches)	81%	high
August Weather	19°C (67°F)	20 mm (0.8 inches)	77%	very high
September Weather	21°C (71°F)	20 mm (0.8 inches)	85%	very high
October Weather	22°C (71°F)	63 mm (2.5 inches)	85%	extreme
November Weather	23°C (74°F)	66 mm (2.6 inches)	85%	extreme
December Weather	25°C (77°F)	85 mm (3.4 inches)	84%	extreme