December weather forecast
Southbroom, South Africa

December

Weather in December

December, the first month of the summer in Southbroom, is a warm month, with temperature in the range of an average low of 19.5°C (67.1°F) and an average high of 23.7°C (74.7°F).

Temperature

The advent of December reveals an average high-temperature of a moderately hot 23.7°C (74.7°F), showing minimal difference from the prior month. Southbroom documents a consistent average low-temperature of 19.5°C (67.1°F) at night during December.

Humidity

The most humid month is December, with an average relative humidity of 83%.

Rainfall

The month with the most rainfall is December, when the rain falls for 22.1 days and typically aggregates up to 76mm (2.99") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 6min of daylight.
On the first day of December, sunrise is at 04:47 and sunset at 18:48. On the last day of the month, sunrise is at 04:58 and sunset at 19:05 SAST.

Sunshine

In Southbroom, the average sunshine in December is 7.4h.

UV index

January through April and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

What are December temperatures?
The high-temperature, in December, in Southbroom, records 23.7°C (74.7°F), while the low-temperature is 19.5°C (67.1°F).
What is the most humid month?
December is the most humid month, with an average relative humidity of 83%.
What is the average humidity in December?
In Southbroom, the average relative humidity in December is 83%.
What is the wettest month?
The month with the most rainfall in Southbroom is December, when the rain falls for 22.1 days and typically aggregates up to 76mm (2.99") of precipitation.
How many days does it rain in December?
In December, the rain falls for 22.1 days. Throughout December, 76mm (2.99") of precipitation is accumulated.
When are the longest days in Southbroom?
December has the longest days of the year, with an average of 14h and 6min of daylight.
How many hours of daylight does Southbroom have in December?
In December, the average day length is 14h and 7min.
When are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 04:47 and sunset at 18:48. On the last day of the month, sunrise is at 04:58 and sunset at 19:05 SAST.
How many hours of sunshine does Southbroom have in December?
In Southbroom, the average sunshine duration in December is 7.4h.
What are the months with the highest UV index?
January through April and December, with an average maximum UV index of 6, are months with the highest UV index in Southbroom.
What is the UV index intensity in December?
In Southbroom, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health threat from 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 - Southbroom, South Africa
Average temperature in December
Southbroom, South Africa
  • Average high temperature in December: 23.7°C

The warmest month (with the highest average high temperature) is February (25.7°C).
The month with the lowest average high temperature is July (20.4°C).

  • Average low temperature in December: 19.5°C

The month with the highest average low temperature is February (20.9°C).
The coldest month (with the lowest average low temperature) is July (14.8°C).

Average pressure in December - Southbroom, South Africa
Average pressure in December
Southbroom, South Africa
  • Average pressure in December: 1014.3mbar

The month with the highest atmospheric pressure is July (1023mbar).
The month with the lowest atmospheric pressure is January (1014.1mbar).

Average wind speed in December - Southbroom, South Africa
Average wind speed in December
Southbroom, South Africa
  • Average wind speed in December: 17.9km/h

The windiest month (with the highest average wind speed) is October (19.8km/h).
The calmest month (with the lowest average wind speed) is May (15.3km/h).

Average humidity in December - Southbroom, South Africa
Average humidity in December
Southbroom, South Africa
  • Average humidity in December: 83%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is June (62%).

Average rainfall in December - Southbroom, South Africa
Average rainfall in December
Southbroom, South Africa
  • Average rainfall in December: 76mm

The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is June (14mm).

Average rainfall days in December - Southbroom, South Africa
Average rainfall days in December
Southbroom, South Africa
  • Average rainfall days in December: 22.1 days

The month with the highest number of rainy days is December (22.1 days).
The month with the least rainy days is June (7.8 days).

Average daylight in December / Average sunshine in December - Southbroom, South Africa
Average daylight in December /
Average sunshine in December
Southbroom, South Africa
  • Average daylight in December: 14h and 1min

The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 12min).

  • Average sunshine in December: 7h and 2min

The month with the most sunshine is February (Average sunshine: 8h and 42min).
The month with the least sunshine is April (Average sunshine: 6h and 0min).

Average sunshine days in December - Southbroom, South Africa
Average sunshine days in December
Southbroom, South Africa
  • Average sunshine days in December: 3.8 days

The month with the most sunshine days is June (20.1 days).
The month with the least sunshine days is December (3.8 days).

Average UV index in December - Southbroom, South Africa
Average UV index in December
Southbroom, South Africa
  • Average UV index in December: 6

The months with the highest UV index are January, February, March, April and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 5).

Average cloud cover in December - Southbroom, South Africa
Average cloud cover in December
Southbroom, South Africa
  • Average cloud cover in December: 56

The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 17).

Average visibility in December - Southbroom, South Africa
Average visibility in December
Southbroom, South Africa
  • Average visibility in December: 9km

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

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