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 proves to be the warmest month, recording an average peak temperature of 31.5°C (88.7°F) and a minimum temperature of 21°C (69.8°F).Heat index
During December, the heat index is computed to be a very hot 38°C (100.4°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In December, the average relative humidity is 66%.Rainfall
December is the month with the most rainfall. Rain falls for 19.6 days and accumulates 97mm (3.82") of precipitation.Daylight
With an average of 13h and 36min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:01 and sunset at 18:31. On the last day of December, in Gravelotte, South Africa, sunrise is at 05:12 and sunset at 18:48 SAST.
Sunshine
In Gravelotte, South Africa, the average sunshine in December is 9.4h.UV index
In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during December translates into these guidelines:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Gravelotte?
How hot does it get in Gravelotte in December?
What is the average humidity in December in Gravelotte?
What is the rainiest month in Gravelotte?
How many days does it rain in December in Gravelotte?
When are the longest days in Gravelotte?
How many hours of daylight does Gravelotte have in December?
When are sunrise and sunset in December in Gravelotte?
How long on average sun shines in December in Gravelotte?
What is the UV index intensity in December in Gravelotte?
Average temperature in December
Gravelotte, South Africa
- Average high temperature in December: 31.5°C
The warmest month (with the highest average high temperature) is December (31.5°C).
The month with the lowest average high temperature is July (24.5°C).
- Average low temperature in December: 21°C
The month with the highest average low temperature is January (21.3°C).
The coldest month (with the lowest average low temperature) is July (12.9°C).
Average pressure in December
Gravelotte, South Africa
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is July (1023.7mbar).
The month with the lowest atmospheric pressure is January (1012.7mbar).
Average wind speed in December
Gravelotte, South Africa
- Average wind speed in December: 10.6km/h
The windiest month (with the highest average wind speed) is October (11.7km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).
Average humidity in December
Gravelotte, South Africa
- Average humidity in December: 66%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is September (50%).
Average rainfall in December
Gravelotte, South Africa
- Average rainfall in December: 97mm
The wettest month (with the highest rainfall) is December (97mm).
The driest month (with the least rainfall) is June (2mm).
Average rainfall days in December
Gravelotte, South Africa
- Average rainfall days in December: 19.6 days
The months with the highest number of rainy days are January and December (19.6 days).
The month with the least rainy days is June (2.4 days).
Average daylight in December /
Average sunshine in December
Gravelotte, South Africa
- Average daylight in December: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in December: 9h and 2min
The month with the most sunshine is February (Average sunshine: 9h and 36min).
The month with the least sunshine is April (Average sunshine: 6h and 12min).
Average sunshine days in December
Gravelotte, South Africa
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in December
Gravelotte, South Africa
- Average UV index in December: 6
The months with the highest UV index are January and November (UV index 7).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in December
Gravelotte, South Africa
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in December
Gravelotte, South Africa
- Average visibility in December: 9km
The months with the highest visibility are March, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, April and December (9km).
