December weather forecast
Mhlume, Swaziland

englishespañol中文
Share

Weather in December

The year in Mhlume concludes with December, which heralds the onset of the warmest weather. The average temperature increases significantly to reach a high of 30.5°C (86.9°F), marking it as one of the hottest months of the year. The rise in temperature coincides with the increase in cloud coverage and relative humidity, together indicating the arrival of more tropical conditions. The wind gusts reach up to 16.7km/h (10.4mph), ensuring a refreshing atmosphere despite the humidity. Overall, December weather in Mhlume provides a warm yet enchanting ambience for tourists and locals alike.

Temperature

Mhlume experiences an average high-temperature of a tropical 30.5°C (86.9°F) with the onset of December, subtly varied from November's 29.1°C (84.4°F). In December, Mhlume experiences a temperature dip to an average of 21.5°C (70.7°F) at night.

Heat index

For most parts of December, the heat index is evaluated at a sweltering 38°C (100.4°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December in Mhlume is 75%.

Rainfall

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

Daylight

The month with the longest days is December, with an average of 13h and 42min of daylight.
On the first day of December in Mhlume, sunrise is at 04:52 and sunset at 18:31. On the last day of the month, sunrise is at 05:03 and sunset at 18:48 SAST.

Sunshine

In December, the average sunshine is 8.6h.

UV index

The months with the highest UV index in Mhlume are January and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

Is it hot during December?

Mhlume in December has an average high-temperature of 30.5°C (86.9°F) and an average low-temperature of 21.5°C (70.7°F). In December, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 38°C (100.4°F).

What is the average humidity in December?

In Mhlume, Swaziland, the average relative humidity in December is 75%.

How much does it rain in December?

In Mhlume, during December, the rain falls for 18.5 days and regularly aggregates up to 65mm (2.56") of precipitation.

When are the longest days?

The month with the longest days is December, with an average of 13h and 42min of daylight.

How many hours of daylight does Mhlume have in December?

In Mhlume, the average day length in December is 13h and 44min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 04:52 and sunset at 18:31. On the last day of the month, sunrise is at 05:03 and sunset at 18:48 SAST.

How many hours of sunshine does Mhlume have in December?

The average sunshine duration in December is 8.6h.

What are the months with the highest UV index in Mhlume?

January and December, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in December?

In Mhlume, the average daily maximum UV index in December is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Average temperature in December
Mhlume, Swaziland

Average temperature in December - Mhlume, Swaziland
  • Average high temperature in December: 30.5°C

The warmest month (with the highest average high temperature) is February (30.7°C).
The month with the lowest average high temperature is July (24.8°C).

  • Average low temperature in December: 21.5°C

The month with the highest average low temperature is January (21.7°C).
The coldest month (with the lowest average low temperature) is July (15.1°C).

Average pressure in December
Mhlume, Swaziland

Average pressure in December - Mhlume, Swaziland
  • Average pressure in December: 1013.5mbar

The month with the highest atmospheric pressure is July (1023.6mbar).
The month with the lowest atmospheric pressure is January (1013mbar).

Average wind speed in December
Mhlume, Swaziland

Average wind speed in December - Mhlume, Swaziland
  • Average wind speed in December: 11.8km/h

The windiest month (with the highest average wind speed) is September (13.6km/h).
The calmest month (with the lowest average wind speed) is May (10.1km/h).

Average humidity in December
Mhlume, Swaziland

Average humidity in December - Mhlume, Swaziland
  • Average humidity in December: 75%

The months with the highest relative humidity are January and March (77%).
The month with the lowest relative humidity is September (62%).

Average rainfall in December
Mhlume, Swaziland

Average rainfall in December - Mhlume, Swaziland
  • Average rainfall in December: 65mm

The wettest month (with the highest rainfall) is February (71mm).
The driest months (with the least rainfall) are May and July (5mm).

Average rainfall days in December
Mhlume, Swaziland

Average rainfall days in December - Mhlume, Swaziland
  • Average rainfall days in December: 18.5 days

The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is June (3.3 days).

Average daylight in December /
Average sunshine in December
Mhlume, Swaziland

Average daylight in December / Average sunshine in December - Mhlume, Swaziland
  • Average daylight in December: 13h and 4min

The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 30min).

  • Average sunshine in December: 8h and 4min

The month with the most sunshine is February (Average sunshine: 9h and 36min).
The month with the least sunshine is April (Average sunshine: 6h and 18min).

Average sunshine days in December
Mhlume, Swaziland

Average sunshine days in December - Mhlume, Swaziland
  • Average sunshine days in December: 8.7 days

The month with the most sunshine days is June (24.8 days).
The month with the least sunshine days is December (8.7 days).

Average UV index in December
Mhlume, Swaziland

Average UV index in December - Mhlume, Swaziland
  • Average UV index in December: 7

The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are June and July (UV index 5).

Average cloud cover in December
Mhlume, Swaziland

Average cloud cover in December - Mhlume, Swaziland
  • Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 16).

Average visibility in December
Mhlume, Swaziland

Average visibility in December - Mhlume, Swaziland
  • Average visibility in December: 9km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, October, November and December (9km).

Mhlume, Swaziland

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location