December weather forecast
Mlawula, Swaziland

December sees a peak in Mlawula's temperature, recording a high of 30.5°C (86.9°F) and a low of 21.5°C (70.7°F) that overshadows the season's warmth. The month measures up to 65mm (2.56") of rainfall, lower than that of November but still significant. The end of the year captures the hallmark characteristics of Swaziland's summer season - high temperatures coupled with high rainfall. This combination results in a weather pattern that is a vibrant blend of warm and wet. In the midst of summer, December, therefore, takes on the role of being Mlawula's high watermark of warmth and rainfall.

Temperature

Mlawula sees the arrival of December with an average high-temperature of a tropical 30.5°C (86.9°F), indicating a subtle variation from November. Mlawula records an average nighttime low of 21.5°C (70.7°F) in December.

Heat index

December's heat index is appraised at a very hot 38°C (100.4°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 18.5 days. Throughout December, 65mm (2.56") of precipitation is accumulated. Throughout the year, there are 135.5 rainfall days, and 406mm (15.98") of precipitation is accumulated.

Daylight

With an average of 13h and 42min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 04:51 and sunset at 18:31. On the last day of the month, sunrise is at 05:02 and sunset at 18:47 SAST.

Sunshine

In Mlawula, the average sunshine in December is 8.6h.

UV index

The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.