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
The month of December, characterized by an average high of 29.3°C (84.7°F) and a low of 15.6°C (60.1°F), is recognized as the warmest.Heat index
During December, the heat index is estimated at a hot 33°C (91.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to 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 67%.Rainfall
In Helpmekaar, during December, the rain falls for 22.5 days and regularly aggregates up to 89mm (3.5") of precipitation. In Helpmekaar, during the entire year, the rain falls for 149.6 days and collects up to 523mm (20.59") of precipitation.Daylight
The month with the longest days is December, with an average of 13h and 54min of daylight.On the first day of December, sunrise is at 04:52 and sunset at 18:42. On the last day of the month, sunrise is at 05:03 and sunset at 18:59 SAST.
Sunshine
In Helpmekaar, the average sunshine in December is 10.7h.UV index
January, November and December, with an average maximum UV index of 6, are months with the highest UV index in Helpmekaar. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What are the warmest months in Helpmekaar?
How hot is December in Helpmekaar?
What is the average humidity in December in Helpmekaar?
How many days does it rain in December in Helpmekaar?
When are the longest days in Helpmekaar?
What is the average length of the day in December in Helpmekaar?
When are sunrise and sunset in December in Helpmekaar?
How many hours of sunshine does Helpmekaar have in December?
What are the months with the highest UV index in Helpmekaar?
What is the UV index intensity in December in Helpmekaar?
Average temperature in December
Helpmekaar, South Africa
- Average high temperature in December: 29.3°C
The warmest month (with the highest average high temperature) is December (29.3°C).
The month with the lowest average high temperature is June (19.7°C).
- Average low temperature in December: 15.6°C
The month with the highest average low temperature is January (16°C).
The coldest month (with the lowest average low temperature) is July (6.2°C).
Average pressure in December
Helpmekaar, South Africa
- Average pressure in December: 1014.9mbar
The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is December (1014.9mbar).
Average wind speed in December
Helpmekaar, South Africa
- Average wind speed in December: 7.7km/h
The windiest months (with the highest average wind speed) are October and November (8.9km/h).
The calmest month (with the lowest average wind speed) is May (6km/h).
Average humidity in December
Helpmekaar, South Africa
- Average humidity in December: 67%
The month with the highest relative humidity is February (73%).
The months with the lowest relative humidity are August and September (45%).
Average rainfall in December
Helpmekaar, South Africa
- Average rainfall in December: 89mm
The wettest month (with the highest rainfall) is January (99mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in December
Helpmekaar, South Africa
- Average rainfall days in December: 22.5 days
The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is June (2.8 days).
Average daylight in December /
Average sunshine in December
Helpmekaar, South Africa
- Average daylight in December: 13h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in December: 10h and 4min
The month with the most sunshine is October (Average sunshine: 11h and 6min).
The month with the least sunshine is April (Average sunshine: 7h and 6min).
Average sunshine days in December
Helpmekaar, South Africa
- Average sunshine days in December: 4.1 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is December (4.1 days).
Average UV index in December
Helpmekaar, South Africa
- Average UV index in December: 6
The months with the highest UV index are January, 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
Helpmekaar, South Africa
- Average cloud cover in December: 34
The month with the most cloud cover is January (Cloud cover 36).
The months with the least cloud cover are June and July (Cloud cover 9).
Average visibility in December
Helpmekaar, South Africa
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January and February (8km).
Helpmekaar, South Africa
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