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, noted 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 considered the warmest month.Heat index
December's heat index is estimated at 29°C (84.2°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In December, the average relative humidity is 58%.Rainfall
The month with the most rainfall in Robertsham, South Africa, is December, when the rain falls for 16.9 days and typically aggregates up to 86mm (3.39") of precipitation.Daylight
The month with the longest days is December, with an average of 13h and 48min of daylight.On the first day of the month, sunrise is at 05:07 and sunset at 18:47. On the last day of December, sunrise is at 05:18 and sunset at 19:03 SAST.
Sunshine
In December, the average sunshine in Robertsham 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 Robertsham, South Africa. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 6 during December morphs into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Robertsham?
What is the usual temperature for Robertsham in December?
What is the average humidity in December in Robertsham?
What is the rainiest month in Robertsham?
How many days does it rain in December in Robertsham?
When are the longest days in Robertsham?
What is the average length of the day in December in Robertsham?
When are sunrise and sunset in December in Robertsham?
How many hours of sunshine does Robertsham have in December?
When is the highest UV index in Robertsham?
How high is the UV index in December in Robertsham?
Average temperature in December
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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
Robertsham, 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).
