December weather forecast
Kroondal, South Africa

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Kroondal, South Africa, with an average temperature ranging between min 18°C (64.4°F) and max 29.1°C (84.4°F).

Temperature

With the onset of December, the average high-temperature registers at a still warm 29.1°C (84.4°F), subtly different from November's 28.7°C (83.7°F). December brings an average low-temperature of 18°C (64.4°F) to Kroondal.

Heat index

The heat index in December is appraised at a hot 31°C (87.8°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Kroondal, the average relative humidity in December is 57%.

Rainfall

December is the month with the most rainfall in Kroondal, South Africa. Rain falls for 19.6 days and accumulates 95mm (3.74") of precipitation.

Daylight

With an average of 13h and 42min of daylight, December has the longest days of the year in Kroondal.
On the first day of December, sunrise is at 05:11 and sunset at 18:48. On the last day of the month, sunrise is at 05:22 and sunset at 19:05 SAST.

Sunshine

In December, the average sunshine is 11.3h.

UV index

January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 6 suggests this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

How hot is it in Kroondal in December?
December temperatures in Kroondal, South Africa, vary between a high-temperature of 29.1°C (84.4°F) and a low-temperature of 18°C (64.4°F). In December, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 31°C (87.8°F).
What is the average humidity in December in Kroondal?
The average relative humidity in December in Kroondal is 57%.
What is the rainiest month in Kroondal?
The month with the most rainfall is December, when the rain falls for 19.6 days and typically aggregates up to 95mm (3.74") of precipitation.
How many days does it rain in December in Kroondal?
In Kroondal, in December, it is raining for 19.6 days, with typically 95mm (3.74") of accumulated precipitation.
When are the longest days in Kroondal?
December has the longest days of the year, with an average of 13h and 42min of daylight.
What is the average length of the day in December in Kroondal?
In Kroondal, South Africa, the average day length in December is 13h and 43min.
When are sunrise and sunset in December in Kroondal?
In December, on the first day of the month, sunrise is at 05:11 and sunset at 18:48. On the last day of the month, in Kroondal, South Africa, sunrise is at 05:22 and sunset at 19:05 SAST.
How long on average sun shines in December in Kroondal?
In December, the average sunshine duration in Kroondal, South Africa, is 11.3h.
What are the months with the highest UV index in Kroondal?
January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index in Kroondal.
How high is the UV index in December in Kroondal?
The average daily maximum UV index in December in Kroondal is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Kroondal, South Africa
Average temperature in December
Kroondal, South Africa
  • Average high temperature in December: 29.1°C

The warmest month (with the highest average high temperature) is January (29.3°C).
The month with the lowest average high temperature is July (18.9°C).

  • Average low temperature in December: 18°C

The months with the highest average low temperature are January and December (18°C).
The coldest month (with the lowest average low temperature) is July (6.3°C).

Average pressure in December - Kroondal, South Africa
Average pressure in December
Kroondal, South Africa
  • Average pressure in December: 1012.6mbar

The month with the highest atmospheric pressure is July (1024.4mbar).
The month with the lowest atmospheric pressure is January (1012.3mbar).

Average wind speed in December - Kroondal, South Africa
Average wind speed in December
Kroondal, South Africa
  • Average wind speed in December: 8.9km/h

The windiest month (with the highest average wind speed) is October (10.6km/h).
The calmest months (with the lowest average wind speed) are March and May (7km/h).

Average humidity in December - Kroondal, South Africa
Average humidity in December
Kroondal, South Africa
  • Average humidity in December: 57%

The month with the highest relative humidity is February (61%).
The month with the lowest relative humidity is September (32%).

Average rainfall in December - Kroondal, South Africa
Average rainfall in December
Kroondal, South Africa
  • Average rainfall in December: 95mm

The wettest month (with the highest rainfall) is December (95mm).
The driest months (with the least rainfall) are July and August (1mm).

Average rainfall days in December - Kroondal, South Africa
Average rainfall days in December
Kroondal, South Africa
  • Average rainfall days in December: 19.6 days

The month with the highest number of rainy days is January (20.7 days).
The month with the least rainy days is August (1 days).

Average daylight in December / Average sunshine in December - Kroondal, South Africa
Average daylight in December /
Average sunshine in December
Kroondal, 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 36min).

  • Average sunshine in December: 11h and 2min

The month with the most sunshine is October (Average sunshine: 11h and 54min).
The months with the least sunshine are June and August (Average sunshine: 7h and 30min).

Average sunshine days in December - Kroondal, South Africa
Average sunshine days in December
Kroondal, South Africa
  • Average sunshine days in December: 6.9 days

The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is January (6.6 days).

Average UV index in December - Kroondal, South Africa
Average UV index in December
Kroondal, South Africa
  • Average UV index in December: 6

The months with the highest UV index are January, February, March, 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 - Kroondal, South Africa
Average cloud cover in December
Kroondal, South Africa
  • Average cloud cover in December: 24

The months with the most cloud cover are January and December (Cloud cover 24).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in December - Kroondal, South Africa
Average visibility in December
Kroondal, 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).

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