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 weather displays an average high-temperature of a still moderately hot 26.2°C (79.2°F), slightly varied from November's 23.5°C (74.3°F). In Robertson, following the steep rise of daytime temperatures, an average nighttime low of 13.2°C (55.8°F) is anticipated during December.Humidity
In December, the average relative humidity in Robertson, South Africa, is 60%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 14mm (0.55") of precipitation is accumulated. Throughout the year, in Robertson, there are 101.2 rainfall days, and 310mm (12.2") of precipitation is accumulated.Daylight
With an average of 14h and 24min of daylight, December has the longest days of the year in Robertson, South Africa.On the first day of the month, sunrise is at 05:22 and sunset at 19:36. On the last day of December, in Robertson, sunrise is at 05:32 and sunset at 19:54 SAST.
Sunshine
With an average of 11.5h of sunshine, December has the most sunshine of the year.UV index
January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Robertson. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during December leads to these advisories:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the temperature in December in Robertson?
What is the average humidity in December in Robertson?
How many days does it rain in December in Robertson?
When are the longest days in Robertson?
What is the average length of the day in December in Robertson?
When is the sunrise / sunset in December in Robertson?
What month has the most sunshine in Robertson?
How long on average sun shines in December in Robertson?
What is the month with the highest UV index in Robertson?
What is the UV index reading in December in Robertson?
Average temperature in December
Robertson, South Africa
- Average high temperature in December: 26.2°C
The warmest month (with the highest average high temperature) is February (28.3°C).
The month with the lowest average high temperature is June (15.1°C).
- Average low temperature in December: 13.2°C
The month with the highest average low temperature is February (14.9°C).
The coldest month (with the lowest average low temperature) is August (5.1°C).
Average pressure in December
Robertson, South Africa
- Average pressure in December: 1013.8mbar
The month with the highest atmospheric pressure is July (1022.2mbar).
The month with the lowest atmospheric pressure is February (1013.1mbar).
Average wind speed in December
Robertson, South Africa
- Average wind speed in December: 10.4km/h
The windiest month (with the highest average wind speed) is November (10.8km/h).
The calmest month (with the lowest average wind speed) is April (9.3km/h).
Average humidity in December
Robertson, South Africa
- Average humidity in December: 60%
The month with the highest relative humidity is August (72%).
The month with the lowest relative humidity is February (59%).
Average rainfall in December
Robertson, South Africa
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is June (66mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in December
Robertson, South Africa
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is February (5.5 days).
Average daylight in December /
Average sunshine in December
Robertson, South Africa
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 11h and 3min
The month with the most sunshine is December (Average sunshine: 11h and 30min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).
Average sunshine days in December
Robertson, South Africa
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is March (21.6 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in December
Robertson, South Africa
- Average UV index in December: 6
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
Robertson, South Africa
- Average cloud cover in December: 20
The month with the most cloud cover is June (Cloud cover 33).
The month with the least cloud cover is February (Cloud cover 17).
Average visibility in December
Robertson, South Africa
- Average visibility in December: 10km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).
Robertson, South Africa
Weather forecast for your location
2. Allow the app to use your location
