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
Geysdorp's December weather reaches an average high of 29.3°C (84.7°F) and an average low of 18.3°C (64.9°F), making it the warmest month.Heat index
The heat index value for December is calculated to be a hot 30°C (86°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Consider that heat index readings are for situations in the shade and light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in December in Geysdorp is 46%.Rainfall
December is the month with the most rainfall in Geysdorp. Rain falls for 15.7 days and accumulates 74mm (2.91") of precipitation.Daylight
December has the longest days of the year in Geysdorp, with an average of 13h and 48min of daylight.On the first day of the month, sunrise is at 05:17 and sunset at 18:58. On the last day of December, sunrise is at 05:28 and sunset at 19:15 SAST.
Sunshine
In December, the average sunshine in Geysdorp is 11.6h.UV index
The months with the highest UV index in Geysdorp are January through March, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 6 suggests this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, 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
What part of the year is the hottest in Geysdorp?
How hot is December in Geysdorp?
What is the average humidity in December in Geysdorp?
What is the wettest month in Geysdorp?
How much does it rain in Geysdorp in December?
When are the longest days in Geysdorp?
What is the average length of the day in December in Geysdorp?
When are sunrise and sunset in December in Geysdorp?
How long on average sun shines in December in Geysdorp?
When is the highest UV index in Geysdorp?
How high is the UV index in December in Geysdorp?
Average temperature in December
Geysdorp, 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 (17.8°C).
- Average low temperature in December: 18.3°C
The month with the highest average low temperature is December (18.3°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average pressure in December
Geysdorp, South Africa
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is July (1024.5mbar).
The month with the lowest atmospheric pressure is January (1011.7mbar).
Average wind speed in December
Geysdorp, South Africa
- Average wind speed in December: 13.2km/h
The windiest months (with the highest average wind speed) are September and November (15km/h).
The calmest month (with the lowest average wind speed) is March (10.3km/h).
Average humidity in December
Geysdorp, South Africa
- Average humidity in December: 46%
The month with the highest relative humidity is February (58%).
The month with the lowest relative humidity is September (29%).
Average rainfall in December
Geysdorp, South Africa
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is December (74mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in December
Geysdorp, South Africa
- Average rainfall days in December: 15.7 days
The month with the highest number of rainy days is January (16.4 days).
The months with the least rainy days are July and August (1.2 days).
Average daylight in December /
Average sunshine in December
Geysdorp, 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 months with the least sunshine are May and June (Average sunshine: 7h and 36min).
Average sunshine days in December
Geysdorp, South Africa
- Average sunshine days in December: 12 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is January (11.3 days).
Average UV index in December
Geysdorp, 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
Geysdorp, South Africa
- Average cloud cover in December: 19
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
Geysdorp, 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).
Geysdorp, South Africa
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