December weather forecast
Mahamba, Swaziland

December

Weather in December

Concluding the calendar year in Mahamba, Swaziland, December exhibits more warmth, heightened by the highest levels of daylight throughout the year. The frequent rainfall contributes to the more humid, tropical feel of the city. Cloud cover is extensive, which means more cloudy days in this month. With an average of 102mm (4.02") of rainfall in December, it comes second to January as the rainiest month of the year. This month brims with warmth, light, and life, rounding off the year on a vibrant note.

Temperature

December stands out as Mahamba's warmest month, with an average high-temperature of 26.3°C (79.3°F) and a low-temperature of 15.2°C (59.4°F).

Humidity

The average relative humidity in December is 79%.

Rainfall

In Mahamba, in December, during 21.3 rainfall days, 102mm (4.02") of precipitation is typically accumulated. Throughout the year, there are 145.6 rainfall days, and 538mm (21.18") of precipitation is accumulated.

Daylight

With an average of 13h and 48min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 04:53 and sunset at 18:36. On the last day of the month, sunrise is at 05:04 and sunset at 18:53 SAST.

Sunshine

The average sunshine in December is 9h.

UV index

The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 5 during December translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What part of the year is the hottest?
December registers as the month with the average highest temperatures, reaching 26.3°C (79.3°F) at its peak and 15.2°C (59.4°F) at the lowest.
What is the temperature in December?
An average high-temperature, in December, in Mahamba, is 26.3°C (79.3°F) and the average low-temperature is 15.2°C (59.4°F).
What is the average humidity in December?
In Mahamba, the average relative humidity in December is 79%.
How much does it rain in December?
In Mahamba, in December, during 21.3 rainfall days, 102mm (4.02") of precipitation is typically accumulated.
When are the longest days?
December has the longest days of the year, with an average of 13h and 48min of daylight.
How many hours of daylight does Mahamba have in December?
The average day length in December is 13h and 49min.
When is the sunrise / sunset in December?
In December, on the first day of the month, sunrise is at 04:53 and sunset at 18:36. On the last day of the month, sunrise is at 05:04 and sunset at 18:53 SAST.
How long on average sun shines in December?
In December, the average sunshine duration is 9h.
What is the UV index intensity in December?
In Mahamba, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Mahamba, Swaziland
Average temperature in December
Mahamba, Swaziland
  • Average high temperature in December: 26.3°C

The warmest month (with the highest average high temperature) is December (26.3°C).
The month with the lowest average high temperature is July (19.4°C).

  • Average low temperature in December: 15.2°C

The months with the highest average low temperature are January and December (15.2°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).

Average pressure in December - Mahamba, Swaziland
Average pressure in December
Mahamba, Swaziland
  • Average pressure in December: 1014.4mbar

The month with the highest atmospheric pressure is July (1024.3mbar).
The months with the lowest atmospheric pressure are January and December (1014.4mbar).

Average wind speed in December - Mahamba, Swaziland
Average wind speed in December
Mahamba, Swaziland
  • Average wind speed in December: 7.7km/h

The windiest months (with the highest average wind speed) are June and September (9.4km/h).
The calmest month (with the lowest average wind speed) is March (6.7km/h).

Average humidity in December - Mahamba, Swaziland
Average humidity in December
Mahamba, Swaziland
  • Average humidity in December: 79%

The months with the highest relative humidity are January, February and March (82%).
The month with the lowest relative humidity is August (54%).

Average rainfall in December - Mahamba, Swaziland
Average rainfall in December
Mahamba, Swaziland
  • Average rainfall in December: 102mm

The wettest month (with the highest rainfall) is January (105mm).
The driest month (with the least rainfall) is July (3mm).

Average rainfall days in December - Mahamba, Swaziland
Average rainfall days in December
Mahamba, Swaziland
  • Average rainfall days in December: 21.3 days

The month with the highest number of rainy days is January (23 days).
The month with the least rainy days is June (2.6 days).

Average daylight in December / Average sunshine in December - Mahamba, Swaziland
Average daylight in December /
Average sunshine in December
Mahamba, Swaziland
  • Average daylight in December: 13h and 5min

The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).

  • Average sunshine in December: 9h and 0min

The month with the most sunshine is October (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 6h and 36min).

Average sunshine days in December - Mahamba, Swaziland
Average sunshine days in December
Mahamba, Swaziland
  • Average sunshine days in December: 7.5 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is January (5 days).

Average UV index in December - Mahamba, Swaziland
Average UV index in December
Mahamba, Swaziland
  • Average UV index in December: 5

The month with the highest UV index is November (UV index 6).
The months with the lowest UV index are April, May, June and July (UV index 4).

Average cloud cover in December - Mahamba, Swaziland
Average cloud cover in December
Mahamba, Swaziland
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and July (Cloud cover 14).

Average visibility in December - Mahamba, Swaziland
Average visibility in December
Mahamba, Swaziland
  • Average visibility in December: 7km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (7km).

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