December weather forecast
Jouberton, South Africa

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Weather in December

December, the first month of the summer in Jouberton, is still a warm month, with an average temperature varying between 18°C (64.4°F) and 29.5°C (85.1°F).

Temperature

Jouberton's warmest season falls during January and December, averaging a high-temperature of 29.5°C (85.1°F).

Heat index

The heat index value for December is appraised at a tropical 30°C (86°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in December in Jouberton is 48%.

Rainfall

December is the month with the most rainfall in Jouberton. Rain falls for 16.7 days and accumulates 73mm (2.87") of precipitation.

Daylight

The month with the longest days in Jouberton is December, with an average of 13h and 48min of daylight.
On the first day of December in Jouberton, sunrise is at 05:11 and sunset at 18:54. On the last day of the month, sunrise is at 05:22 and sunset at 19:10 SAST.

Sunshine

The average sunshine in December is 11.6h.

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 health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in December transforms into this advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer 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 hottest time of year in Jouberton?

Jouberton experiences its warmest period in January and December, averaging a high-temperature of 29.5°C (85.1°F).

How hot does it get in Jouberton in December?

The average high-temperature, in December, in Jouberton, is 29.5°C (85.1°F), while the average low-temperature is 18°C (64.4°F). In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 30°C (86°F).

What is the average humidity in December in Jouberton?

In Jouberton, South Africa, the average relative humidity in December is 48%.

What is the rainiest month in Jouberton?

The month with the most rainfall in Jouberton, South Africa, is December, when the rain falls for 16.7 days and typically aggregates up to 73mm (2.87") of precipitation.

How many days does it rain in December in Jouberton?

In Jouberton, in December, it is raining for 16.7 days, with typically 73mm (2.87") of accumulated precipitation.

When are the longest days in Jouberton?

December has the longest days of the year in Jouberton, South Africa, with an average of 13h and 48min of daylight.

What is the average length of the day in December in Jouberton?

In Jouberton, South Africa, the average day length in December is 13h and 48min.

What time are sunrise and sunset in December in Jouberton?

On the first day of December, sunrise is at 05:11 and sunset at 18:54. On the last day of the month, sunrise is at 05:22 and sunset at 19:10 SAST.

How many hours of sunshine does Jouberton have in December?

The average sunshine duration in December in Jouberton, South Africa, is 11.6h.

What is the month with the highest UV index in Jouberton?

January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index in Jouberton, South Africa.

What is the UV index reading in December in Jouberton?

In Jouberton, South Africa, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in December
Jouberton, South Africa

Average temperature in December - Jouberton, South Africa
  • Average high temperature in December: 29.5°C

The warmest months (with the highest average high temperature) are January and December (29.5°C).
The months with the lowest average high temperature are June and July (18.3°C).

  • Average low temperature in December: 18°C

The month with the highest average low temperature is December (18°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).

Average pressure in December
Jouberton, South Africa

Average pressure in December - Jouberton, South Africa
  • Average pressure in December: 1012.3mbar

The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1012.1mbar).

Average wind speed in December
Jouberton, South Africa

Average wind speed in December - Jouberton, South Africa
  • Average wind speed in December: 12.2km/h

The windiest month (with the highest average wind speed) is November (13.8km/h).
The calmest month (with the lowest average wind speed) is May (8.9km/h).

Average humidity in December
Jouberton, South Africa

Average humidity in December - Jouberton, South Africa
  • Average humidity in December: 48%

The month with the highest relative humidity is February (58%).
The month with the lowest relative humidity is September (29%).

Average rainfall in December
Jouberton, South Africa

Average rainfall in December - Jouberton, South Africa
  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is December (73mm).
The driest months (with the least rainfall) are July and August (1mm).

Average rainfall days in December
Jouberton, South Africa

Average rainfall days in December - Jouberton, South Africa
  • Average rainfall days in December: 16.7 days

The month with the highest number of rainy days is December (16.7 days).
The months with the least rainy days are July and August (1 days).

Average daylight in December /
Average sunshine in December
Jouberton, South Africa

Average daylight in December / Average sunshine in December - Jouberton, South Africa
  • Average daylight in December: 13h and 5min

The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).

  • Average sunshine in December: 11h and 4min

The months with the most sunshine are October and November (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).

Average sunshine days in December
Jouberton, South Africa

Average sunshine days in December - Jouberton, South Africa
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is August (29.5 days).
The month with the least sunshine days is December (10.5 days).

Average UV index in December
Jouberton, South Africa

Average UV index in December - Jouberton, 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
Jouberton, South Africa

Average cloud cover in December - Jouberton, South Africa
  • Average cloud cover in December: 20

The month with the most cloud cover is January (Cloud cover 21).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in December
Jouberton, South Africa

Average visibility in December - Jouberton, 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).

Jouberton, South Africa

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