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 is the warmest month of the year, registering average temperatures as high as 31.3°C (88.3°F) and as low as 20.6°C (69.1°F).Humidity
In December, the average relative humidity is 37%.Rainfall
In Piet Plessis, South Africa, during December, the rain falls for 10.6 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 67.5 rainfall days, and 204mm (8.03") of precipitation is accumulated.Daylight
With an average of 13h and 42min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:21 and sunset at 19:01. On the last day of December, sunrise is at 05:33 and sunset at 19:18 SAST.
Sunshine
The average sunshine in December is 11.7h.UV index
The months with the highest UV index are January, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, a daily UV index of 7 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest?
How hot is it in Piet Plessis in December?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
How many hours of daylight does Piet Plessis have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Piet Plessis have in December?
What are the months with the highest UV index?
What is the UV index intensity in December?
Average temperature in December
Piet Plessis, South Africa
- Average high temperature in December: 31.3°C
The warmest month (with the highest average high temperature) is December (31.3°C).
The months with the lowest average high temperature are June and July (18.4°C).
- Average low temperature in December: 20.6°C
The month with the highest average low temperature is January (21°C).
The coldest month (with the lowest average low temperature) is July (6.4°C).
Average pressure in December
Piet Plessis, South Africa
- Average pressure in December: 1011.1mbar
The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1010.9mbar).
Average wind speed in December
Piet Plessis, South Africa
- Average wind speed in December: 15.8km/h
The windiest month (with the highest average wind speed) is November (17.8km/h).
The calmest month (with the lowest average wind speed) is May (12.2km/h).
Average humidity in December
Piet Plessis, South Africa
- Average humidity in December: 37%
The months with the highest relative humidity are February and April (47%).
The month with the lowest relative humidity is September (25%).
Average rainfall in December
Piet Plessis, South Africa
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is April (36mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in December
Piet Plessis, South Africa
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is December (10.6 days).
The month with the least rainy days is July (0.9 days).
Average daylight in December /
Average sunshine in December
Piet Plessis, 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 4min
The month with the most sunshine is November (Average sunshine: 11h and 54min).
The month with the least sunshine is June (Average sunshine: 7h and 30min).
Average sunshine days in December
Piet Plessis, South Africa
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is July (29.9 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in December
Piet Plessis, South Africa
- Average UV index in December: 7
The months with the highest UV index are January, November and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Piet Plessis, South Africa
- Average cloud cover in December: 15
The month with the most cloud cover is February (Cloud cover 19).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Piet Plessis, South Africa
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
