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
With the onset of December, a modest change to a still hot 32°C (89.6°F) from November's 33.1°C (91.6°F) is noted in high-temperature. An average low-temperature of 23.2°C (73.8°F) marks the nights throughout December.Heat index
In December, the heat index is calculated to be a hot 33°C (91.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
The average relative humidity in December in Onaanda is 44%.Rainfall
In Onaanda, in December, during 17.1 rainfall days, 78mm (3.07") of precipitation is typically accumulated. In Onaanda, during the entire year, the rain falls for 100.8 days and collects up to 379mm (14.92") of precipitation.Daylight
The month with the longest days is December, with an average of 13h and 12min of daylight.On the first day of the month, sunrise is at 06:14 and sunset at 19:21. On the last day of December, sunrise is at 06:26 and sunset at 19:37 CAT.
Sunshine
In December, the average sunshine is 9.4h.UV index
January, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in 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 Onaanda have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the highest UV index?
How high is the UV index in December?
Average temperature in December
Onaanda, Namibia
- Average high temperature in December: 32°C
The warmest month (with the highest average high temperature) is October (35.7°C).
The month with the lowest average high temperature is June (26.7°C).
- Average low temperature in December: 23.2°C
The month with the highest average low temperature is November (23.3°C).
The coldest month (with the lowest average low temperature) is July (11.3°C).
Average pressure in December
Onaanda, Namibia
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1009.5mbar).
Average wind speed in December
Onaanda, Namibia
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is July (13.1km/h).
The calmest month (with the lowest average wind speed) is February (9.4km/h).
Average humidity in December
Onaanda, 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 (18%).
Average rainfall in December
Onaanda, Namibia
- Average rainfall in December: 78mm
The wettest month (with the highest rainfall) is January (83mm).
The driest months (with the least rainfall) are May, June, July and August (0mm).
Average rainfall days in December
Onaanda, Namibia
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is July (0 days).
Average daylight in December /
Average sunshine in December
Onaanda, 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 2min
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: 9h and 12min).
Average sunshine days in December
Onaanda, Namibia
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is July (31 days).
The month with the least sunshine days is March (10 days).
Average UV index in December
Onaanda, 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
Onaanda, Namibia
- Average cloud cover in December: 24
The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 1).
Average visibility in December
Onaanda, 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).
Onaanda, Namibia
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