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
December
Weather in December
Temperature
December is the warmest month of the year, registering average temperatures as high as 29.3°C (84.7°F) and as low as 18.3°C (64.9°F).Heat index
December's mean heat index is computed to be a tropical 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold particular significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
In December, the average relative humidity is 46%.Rainfall
The month with the most rainfall is December, when the rain falls for 15.7 days and typically aggregates up to 74mm (2.91") of precipitation.Daylight
With an average of 13h and 48min of daylight, December has the longest days of the year in Ottosdal.On the first day of December, sunrise is at 05:14 and sunset at 18:56. On the last day of the month, sunrise is at 05:25 and sunset at 19:13 SAST.
Sunshine
In December, the average sunshine in Ottosdal 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 in Ottosdal. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 6 suggests these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Ottosdal?
Is it hot in Ottosdal during December?
What is the average humidity in December in Ottosdal?
What is the rainiest month in Ottosdal?
How much does it rain in Ottosdal in December?
When are the longest days in Ottosdal?
What is the average length of the day in December in Ottosdal?
When is the sunrise / sunset in December in Ottosdal?
How long on average sun shines in December in Ottosdal?
When is the highest UV index in Ottosdal?
How high is the UV index in December in Ottosdal?
Average temperature in December
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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
Ottosdal, 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).
