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
December
Weather in December
Temperature
December, known for its average high temperature of 27.5°C (81.5°F) and an average low temperature of 16.3°C (61.3°F), is the warmest month.Heat index
December's heat index is appraised at 29°C (84.2°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In December, the average relative humidity in Willowdene is 58%.Rainfall
December is the month with the most rainfall. Rain falls for 16.9 days and accumulates 86mm (3.39") of precipitation.Daylight
With an average of 13h and 48min of daylight, December has the longest days of the year in Willowdene.On the first day of the month, sunrise is at 05:07 and sunset at 18:47. On the last day of December, in Willowdene, sunrise is at 05:18 and sunset at 19:04 SAST.
Sunshine
In Willowdene, the average sunshine in December is 11.3h.UV index
January, October through December, with an average maximum UV index of 6, are months with the highest UV index in Willowdene. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 6 during December leads to these advisories:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Willowdene?
What are December temperatures in Willowdene?
What is the average humidity in December in Willowdene?
What is the wettest month in Willowdene?
How much does it rain in Willowdene in December?
When are the longest days in Willowdene?
How many hours of daylight does Willowdene have in December?
What time are sunrise and sunset in December in Willowdene?
How long on average sun shines in December in Willowdene?
What are the months with the highest UV index in Willowdene?
What is the UV index reading in December in Willowdene?
Average temperature in December
Willowdene, South Africa
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is December (27.5°C).
The month with the lowest average high temperature is July (17.7°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 (5.9°C).
Average pressure in December
Willowdene, South Africa
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is July (1024.7mbar).
The month with the lowest atmospheric pressure is January (1013.1mbar).
Average wind speed in December
Willowdene, South Africa
- Average wind speed in December: 10.3km/h
The windiest month (with the highest average wind speed) is November (12km/h).
The calmest month (with the lowest average wind speed) is May (7.9km/h).
Average humidity in December
Willowdene, South Africa
- Average humidity in December: 58%
The months with the highest relative humidity are January and February (63%).
The month with the lowest relative humidity is September (33%).
Average rainfall in December
Willowdene, South Africa
- Average rainfall in December: 86mm
The wettest month (with the highest rainfall) is December (86mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in December
Willowdene, South Africa
- Average rainfall days in December: 16.9 days
The month with the highest number of rainy days is January (17.8 days).
The months with the least rainy days are July and August (0.8 days).
Average daylight in December /
Average sunshine in December
Willowdene, 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 2min
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 24min).
Average sunshine days in December
Willowdene, South Africa
- Average sunshine days in December: 11 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is January (10.8 days).
Average UV index in December
Willowdene, 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
Willowdene, South Africa
- Average cloud cover in December: 24
The month with the most cloud cover is January (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Willowdene, 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).
