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
The arrival of December sees a recorded average high-temperature of a still hot 31.8°C (89.2°F), showing little divergence from the previous month's conditions. Throughout December, a steady low-temperature average of 23.3°C (73.9°F) is noted.Heat index
In December, the heat index is appraised at a tropical 33°C (91.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In December, the average relative humidity is 44%.Rainfall
In Onankali, during December, the rain falls for 16.4 days and regularly aggregates up to 61mm (2.4") of precipitation. In Onankali, during the entire year, the rain falls for 91.8 days and collects up to 272mm (10.71") of precipitation.Daylight
With an average of 13h and 12min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 06:09 and sunset at 19:17. On the last day of the month, sunrise is at 06:21 and sunset at 19:33 CAT.
Sunshine
In Onankali, the average sunshine in December is 9.1h.UV index
The months with the highest UV index are January, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 in December translates into these instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
How many hours of daylight does Onankali have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Onankali have in December?
What are the months with the highest UV index?
How high is the UV index in December?
Average temperature in December
Onankali, Namibia
- Average high temperature in December: 31.8°C
The warmest month (with the highest average high temperature) is October (35.8°C).
The month with the lowest average high temperature is June (26.7°C).
- Average low temperature in December: 23.3°C
The month with the highest average low temperature is December (23.3°C).
The coldest month (with the lowest average low temperature) is July (11.3°C).
Average pressure in December
Onankali, Namibia
- Average pressure in December: 1009.4mbar
The month with the highest atmospheric pressure is July (1018.7mbar).
The months with the lowest atmospheric pressure are January and December (1009.4mbar).
Average wind speed in December
Onankali, Namibia
- Average wind speed in December: 10.6km/h
The windiest month (with the highest average wind speed) is July (13.4km/h).
The calmest month (with the lowest average wind speed) is February (9.6km/h).
Average humidity in December
Onankali, Namibia
- Average humidity in December: 44%
The month with the highest relative humidity is March (55%).
The month with the lowest relative humidity is September (17%).
Average rainfall in December
Onankali, Namibia
- Average rainfall in December: 61mm
The wettest month (with the highest rainfall) is January (62mm).
The driest months (with the least rainfall) are May, June, July, August and September (0mm).
Average rainfall days in December
Onankali, Namibia
- Average rainfall days in December: 16.4 days
The month with the highest number of rainy days is March (17.5 days).
The months with the least rainy days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Onankali, Namibia
- Average daylight in December: 13h and 1min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in December: 9h and 1min
The months with the most sunshine are August and September (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 8h and 54min).
Average sunshine days in December
Onankali, Namibia
- Average sunshine days in December: 12 days
The months with the most sunshine days are July and August (31 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in December
Onankali, Namibia
- Average UV index in December: 7
The months with the highest UV index are January, September, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in December
Onankali, Namibia
- Average cloud cover in December: 25
The months with the most cloud cover are January, February and March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 1).
Average visibility in December
Onankali, Namibia
- 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).
