Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The average high-temperature in Pretoria, South Africa, is a still moderately hot 28.5°C (83.3°F) in December, hardly different from the 28.1°C (82.6°F) recorded in November. Nighttime temperature dips to a mean of 17.5°C (63.5°F) during December.Heat index
The heat index for December is computed to be a tropical 30°C (86°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In Pretoria, the average relative humidity in December is 60%.Rainfall
In Pretoria, during December, the rain falls for 20.4 days and regularly aggregates up to 83mm (3.27") of precipitation. In Pretoria, South Africa, during the entire year, the rain falls for 120.8 days and collects up to 421mm (16.57") of precipitation.Daylight
The month with the longest days in Pretoria, South Africa, is December, with an average of 13h and 42min of daylight.On the first day of December, sunrise is at 05:07 and sunset at 18:45. On the last day of the month, sunrise is at 05:18 and sunset at 19:01 SAST.
Sunshine
In Pretoria, the average sunshine in December is 11.4h.UV index
January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index in Pretoria. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 6 suggests this advice:
Guard oneself from overexposure. Defence against sun injury is vital. 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. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Pretoria during December?
What is the average humidity in December in Pretoria?
How many days does it rain in December in Pretoria?
When are the longest days in Pretoria?
How many hours of daylight does Pretoria have in December?
What time are sunrise and sunset in December in Pretoria?
How many hours of sunshine does Pretoria have in December?
What are the months with the highest UV index in Pretoria?
What is the UV index reading in December in Pretoria?
Average temperature in December
Pretoria, South Africa
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is January (28.7°C).
The month with the lowest average high temperature is June (19.1°C).
- Average low temperature in December: 17.5°C
The months with the highest average low temperature are January and December (17.5°C).
The coldest month (with the lowest average low temperature) is July (6.9°C).
Average pressure in December
Pretoria, South Africa
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1013mbar).
Average wind speed in December
Pretoria, South Africa
- Average wind speed in December: 9.5km/h
The windiest month (with the highest average wind speed) is November (11.1km/h).
The calmest month (with the lowest average wind speed) is May (7.3km/h).
Average humidity in December
Pretoria, South Africa
- Average humidity in December: 60%
The months with the highest relative humidity are January and February (62%).
The month with the lowest relative humidity is September (35%).
Average rainfall in December
Pretoria, South Africa
- Average rainfall in December: 83mm
The wettest month (with the highest rainfall) is January (92mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in December
Pretoria, South Africa
- Average rainfall days in December: 20.4 days
The month with the highest number of rainy days is January (21.5 days).
The month with the least rainy days is July (1.1 days).
Average daylight in December /
Average sunshine in December
Pretoria, South Africa
- 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 36min).
- Average sunshine in December: 11h and 2min
The month with the most sunshine is October (Average sunshine: 11h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days in December
Pretoria, South Africa
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is December (6.5 days).
Average UV index in December
Pretoria, South Africa
- Average UV index in December: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Pretoria, South Africa
- Average cloud cover in December: 25
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Pretoria, South Africa
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Pretoria, South Africa
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