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
Katlehong's warmest months, January and December, record an average high-temperature of 27.3°C (81.1°F).Heat index
The average heat index in December is appraised at 28°C (82.4°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In Katlehong, the average relative humidity in December is 60%.Rainfall
December is the month with the most rainfall in Katlehong. Rain falls for 18.4 days and accumulates 85mm (3.35") of precipitation.Daylight
With an average of 13h and 48min of daylight, December has the longest days of the year in Katlehong.On the first day of December in Katlehong, sunrise is at 05:06 and sunset at 18:46. On the last day of the month, sunrise is at 05:17 and sunset at 19:03 SAST.
Sunshine
The average sunshine in December in Katlehong, South Africa, is 11.2h.UV index
The average daily maximum UV index in December is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 in December translates into this advice:
Heed the precautions - It is counselled to guard against solar damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What are the warmest months in Katlehong?
What are December temperatures in Katlehong?
What is the average humidity in December in Katlehong?
What is the rainiest month in Katlehong?
How many days does it rain in December in Katlehong?
When are the longest days in Katlehong?
How many hours of daylight does Katlehong have in December?
When is the sunrise / sunset in December in Katlehong?
How many hours of sunshine does Katlehong have in December?
What is the UV index reading in December in Katlehong?
Average temperature in December
Katlehong, South Africa
- Average high temperature in December: 27.3°C
The warmest months (with the highest average high temperature) are January and December (27.3°C).
The month with the lowest average high temperature is July (17.7°C).
- Average low temperature in December: 16°C
The month with the highest average low temperature is December (16°C).
The coldest month (with the lowest average low temperature) is July (5.8°C).
Average pressure in December
Katlehong, South Africa
- Average pressure in December: 1013.5mbar
The month with the highest atmospheric pressure is July (1024.8mbar).
The month with the lowest atmospheric pressure is January (1013.3mbar).
Average wind speed in December
Katlehong, South Africa
- Average wind speed in December: 10.1km/h
The windiest months (with the highest average wind speed) are September, October and November (11.8km/h).
The calmest month (with the lowest average wind speed) is May (8km/h).
Average humidity in December
Katlehong, South Africa
- Average humidity in December: 60%
The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is September (34%).
Average rainfall in December
Katlehong, South Africa
- Average rainfall in December: 85mm
The wettest month (with the highest rainfall) is December (85mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days in December
Katlehong, South Africa
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is December (18.4 days).
The month with the least rainy days is July (0.8 days).
Average daylight in December /
Average sunshine in December
Katlehong, South Africa
- 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: 11h and 1min
The month with the most sunshine is October (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days in December
Katlehong, South Africa
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is December (8.6 days).
Average UV index in December
Katlehong, South Africa
- Average UV index in December: 5
The months with the highest UV index are January, October and November (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Katlehong, South Africa
- Average cloud cover in December: 26
The month with the most cloud cover is January (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Katlehong, South Africa
- Average visibility in December: 10km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and March (9km).
Katlehong, South Africa
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