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
Bultfontein sees the highest average temperatures during the months of January and December, peaking at 30.8°C (87.4°F).Heat index
December's mean heat index is appraised at a hot 31°C (87.8°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In December, the average relative humidity is 40%.Rainfall
December is the month with the most rainfall. Rain falls for 12.7 days and accumulates 46mm (1.81") 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 the month, sunrise is at 05:10 and sunset at 18:58. On the last day of December, in Bultfontein, sunrise is at 05:21 and sunset at 19:15 SAST.
Sunshine
In Bultfontein, the average sunshine in December is 11.6h.UV index
The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 7 during December translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What month is the hottest in Bultfontein?
How hot does it get in Bultfontein in December?
What is the average humidity in December in Bultfontein?
What is the rainiest month in Bultfontein?
How many days does it rain in December in Bultfontein?
When are the longest days in Bultfontein?
What is the average length of the day in December in Bultfontein?
When are sunrise and sunset in December in Bultfontein?
How long on average sun shines in December in Bultfontein?
When is the highest UV index in Bultfontein?
How high is the UV index in December in Bultfontein?
Average temperature in December
Bultfontein, South Africa
- Average high temperature in December: 30.8°C
The warmest months (with the highest average high temperature) are January and December (30.8°C).
The months with the lowest average high temperature are June and July (17.9°C).
- Average low temperature in December: 19.1°C
The month with the highest average low temperature is January (19.5°C).
The coldest month (with the lowest average low temperature) is July (5.5°C).
Average pressure in December
Bultfontein, South Africa
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is July (1024.8mbar).
The month with the lowest atmospheric pressure is January (1011.7mbar).
Average wind speed in December
Bultfontein, South Africa
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is November (14.8km/h).
The calmest month (with the lowest average wind speed) is May (9.6km/h).
Average humidity in December
Bultfontein, South Africa
- Average humidity in December: 40%
The month with the highest relative humidity is February (50%).
The month with the lowest relative humidity is September (29%).
Average rainfall in December
Bultfontein, South Africa
- Average rainfall in December: 46mm
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in December
Bultfontein, South Africa
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is December (12.7 days).
The month with the least rainy days is July (0.9 days).
Average daylight in December /
Average sunshine in December
Bultfontein, 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: 11h and 4min
The month with the most sunshine is November (Average sunshine: 11h and 54min).
The month with the least sunshine is June (Average sunshine: 7h and 30min).
Average sunshine days in December
Bultfontein, South Africa
- Average sunshine days in December: 16 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in December
Bultfontein, South Africa
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Bultfontein, South Africa
- Average cloud cover in December: 17
The month with the most cloud cover is February (Cloud cover 19).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in December
Bultfontein, 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).
Bultfontein, South Africa
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