December weather forecast
Nelspruit, South Africa

December promises the arrival of typical summer weather in Nelspruit, reaching annual high temperatures of 28°C (82.4°F). Comparatively, December is warmer than the previous month of November, with only a slight difference in the average low temperatures. The city is drenched with rainfall recording an impressive 85mm (3.35"), causing an increase in the cloud cover. Heavier rainfall, combined with enhanced cloud cover, lends Nelspruit a typical tropical feel in December. Residents and tourists experience truly festive weather, with warm, humid conditions, punctuated by frequent, refreshing showers.

Temperature

December is the month that records the highest temperatures in Nelspruit, with averages ranging from a high of 28°C (82.4°F) to a low of 17.1°C (62.8°F).

Heat index

The heat index in December is evaluated at a hot 32°C (89.6°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The average relative humidity in December in Nelspruit is 76%.

Rainfall

In Nelspruit, in December, it is raining for 20.5 days, with typically 85mm (3.35") of accumulated precipitation. Throughout the year, there are 140.6 rainfall days, and 458mm (18.03") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 04:56 and sunset at 18:33. On the last day of December, sunrise is at 05:08 and sunset at 18:50 SAST.

Sunshine

In Nelspruit, South Africa, the average sunshine in December is 9h.

UV index

The months with the highest UV index in Nelspruit are January, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.