December weather forecast
Rayton, South Africa

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Rayton, South Africa, with temperature in the range of an average high of 28.1°C (82.6°F) and an average low of 17.1°C (62.8°F).

Temperature

The shift to December signals an average high-temperature of a still warm 28.1°C (82.6°F), subtly varied from November's 27.8°C (82°F). During December, Rayton's temperature averages to a refreshing 17.1°C (62.8°F) at night.

Heat index

For most parts of December, the heat index is appraised at a hot 30°C (86°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In Rayton, the average relative humidity in December is 61%.

Rainfall

In December, the rain falls for 20.5 days. Throughout December, 81mm (3.19") of precipitation is accumulated. Throughout the year, in Rayton, South Africa, there are 123.3 rainfall days, and 430mm (16.93") of precipitation is accumulated.

Daylight

The month with the longest days in Rayton is December, with an average of 13h and 42min of daylight.
On the first day of the month, sunrise is at 05:06 and sunset at 18:43. On the last day of December, in Rayton, sunrise is at 05:17 and sunset at 19:00 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during December leads to these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

Is it hot in Rayton during December?
The average high-temperature and low-temperature during December are 28.1°C (82.6°F) and 17.1°C (62.8°F) respectively. In December, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 30°C (86°F).
What is the average humidity in December in Rayton?
The average relative humidity in December in Rayton, South Africa, is 61%.
How many days does it rain in December in Rayton?
In Rayton, South Africa, in December, it is raining for 20.5 days, with typically 81mm (3.19") of accumulated precipitation.
When are the longest days in Rayton?
With an average of 13h and 42min of daylight, December has the longest days of the year.
How many hours of daylight does Rayton have in December?
In December, the average day length in Rayton is 13h and 43min.
When are sunrise and sunset in December in Rayton?
On the first day of December in Rayton, sunrise is at 05:06 and sunset at 18:43. On the last day of the month, sunrise is at 05:17 and sunset at 19:00 SAST.
How many hours of sunshine does Rayton have in December?
The average sunshine duration in December in Rayton is 11.3h.
When is the highest UV index in Rayton?
January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index intensity in December in Rayton?
The average daily maximum UV index in December in Rayton is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to 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 - Rayton, South Africa
Average temperature in December
Rayton, South Africa
  • Average high temperature in December: 28.1°C

The warmest month (with the highest average high temperature) is January (28.3°C).
The months with the lowest average high temperature are June and July (18.8°C).

  • Average low temperature in December: 17.1°C

The months with the highest average low temperature are January and December (17.1°C).
The coldest month (with the lowest average low temperature) is July (6.7°C).

Average pressure in December - Rayton, South Africa
Average pressure in December
Rayton, South Africa
  • Average pressure in December: 1013.5mbar

The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1013.2mbar).

Average wind speed in December - Rayton, South Africa
Average wind speed in December
Rayton, South Africa
  • Average wind speed in December: 9.9km/h

The windiest months (with the highest average wind speed) are October and November (11.5km/h).
The calmest month (with the lowest average wind speed) is May (7.7km/h).

Average humidity in December - Rayton, South Africa
Average humidity in December
Rayton, South Africa
  • Average humidity in December: 61%

The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is September (36%).

Average rainfall in December - Rayton, South Africa
Average rainfall in December
Rayton, South Africa
  • Average rainfall in December: 81mm

The wettest month (with the highest rainfall) is January (92mm).
The driest month (with the least rainfall) is July (0mm).

Average rainfall days in December - Rayton, South Africa
Average rainfall days in December
Rayton, South Africa
  • Average rainfall days in December: 20.5 days

The month with the highest number of rainy days is January (21.8 days).
The month with the least rainy days is July (0.8 days).

Average daylight in December / Average sunshine in December - Rayton, South Africa
Average daylight in December /
Average sunshine in December
Rayton, 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 48min).
The months with the least sunshine are April and August (Average sunshine: 7h and 30min).

Average sunshine days in December - Rayton, South Africa
Average sunshine days in December
Rayton, South Africa
  • Average sunshine days in December: 6.5 days

The month with the most sunshine days is July (29.8 days).
The months with the least sunshine days are January and December (6.5 days).

Average UV index in December - Rayton, South Africa
Average UV index in December
Rayton, 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 - Rayton, South Africa
Average cloud cover in December
Rayton, South Africa
  • Average cloud cover in December: 25

The month with the most cloud cover is January (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in December - Rayton, South Africa
Average visibility in December
Rayton, South Africa
  • Average visibility in December: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).

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