December weather forecastOnaanda, Namibia

December

Weather in December

December, the first month of the summer in Onaanda, is also a hot month, with an average temperature varying between 32°C (89.6°F) and 23.2°C (73.8°F).

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.

Updated: Jun 15, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, the average high-temperature and low-temperature are 32°C (89.6°F) and 23.2°C (73.8°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in December is calculated to be 33°C (91.4°F).

In Onaanda, the average relative humidity in December is 44%.

In Onaanda, in December, it is raining for 17.1 days, with typically 78mm (3.07") of accumulated precipitation.

With an average of 13h and 12min of daylight, December has the longest days of the year.

In December, the average day length is 13h and 11min.

In December, on the first day of the month, sunrise is at 06:14 and sunset at 19:21. On the last day of the month, sunrise is at 06:26 and sunset at 19:37 CAT.

In Onaanda, the average sunshine duration in December is 9.4h.

January, September through December, with an average maximum UV index of 7, are months with the highest UV index.

The average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

33.1°C

32°C

31.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.8km/h

12.5km/h

11.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

14.4

11.2

Average UV index

Average cloud cover

Average visibility

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 12min

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 24min

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).