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
December's climate shows a minor adjustment in average high-temperatures to a still warm 27°C (80.6°F) from November's 26.7°C (80.1°F). Houghton Estate records a steady low-temperature average of 16.3°C (61.3°F) during December.Heat index
December's average heat index is estimated at 28°C (82.4°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In Houghton Estate, the average relative humidity in December is 61%.Rainfall
In December, in Houghton Estate, South Africa, the rain falls for 20.6 days. Throughout December, 89mm (3.5") of precipitation is accumulated. In Houghton Estate, during the entire year, the rain falls for 126.3 days and collects up to 457mm (17.99") of precipitation.Daylight
December has the longest days of the year, with an average of 13h and 42min of daylight.On the first day of December in Houghton Estate, sunrise is at 05:07 and sunset at 18:46. On the last day of the month, sunrise is at 05:18 and sunset at 19:03 SAST.
Sunshine
In December, the average sunshine is 11.2h.UV index
January, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What are December temperatures in Houghton Estate?
What is the average humidity in December in Houghton Estate?
How many days does it rain in December in Houghton Estate?
When are the longest days in Houghton Estate?
What is the average length of the day in December in Houghton Estate?
What time are sunrise and sunset in December in Houghton Estate?
How long on average sun shines in December in Houghton Estate?
What are the months with the highest UV index in Houghton Estate?
What is the UV index intensity in December in Houghton Estate?
Average temperature in December
Houghton Estate, South Africa
- Average high temperature in December: 27°C
The warmest month (with the highest average high temperature) is January (27.3°C).
The month with the lowest average high temperature is July (17.8°C).
- Average low temperature in December: 16.3°C
The months with the highest average low temperature are January and December (16.3°C).
The coldest month (with the lowest average low temperature) is July (6.2°C).
Average pressure in December
Houghton Estate, South Africa
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is July (1024.7mbar).
The month with the lowest atmospheric pressure is January (1013.2mbar).
Average wind speed in December
Houghton Estate, South Africa
- Average wind speed in December: 9.9km/h
The windiest month (with the highest average wind speed) is October (11.6km/h).
The calmest month (with the lowest average wind speed) is May (7.9km/h).
Average humidity in December
Houghton Estate, South Africa
- Average humidity in December: 61%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is September (35%).
Average rainfall in December
Houghton Estate, South Africa
- Average rainfall in December: 89mm
The wettest month (with the highest rainfall) is January (94mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in December
Houghton Estate, South Africa
- Average rainfall days in December: 20.6 days
The month with the highest number of rainy days is January (21.2 days).
The month with the least rainy days is July (1.5 days).
Average daylight in December /
Average sunshine in December
Houghton Estate, 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 30min).
- Average sunshine in December: 11h and 1min
The month with the most sunshine is October (Average sunshine: 11h and 42min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in December
Houghton Estate, South Africa
- Average sunshine days in December: 6.7 days
The months with the most sunshine days are July and August (28.8 days).
The months with the least sunshine days are January and December (6.7 days).
Average UV index in December
Houghton Estate, South Africa
- Average UV index in December: 6
The months with the highest UV index are January, 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
Houghton Estate, South Africa
- Average cloud cover in December: 26
The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Houghton Estate, South Africa
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Houghton Estate, South Africa
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