December weather forecastOnambutu, Namibia

December

Weather in December

The first month of the summer, December, is still a tropical month in Onambutu, Namibia, with an average temperature ranging between max 31.8°C (89.2°F) and min 23.3°C (73.9°F).

Temperature

The arrival of December is marked by an average high-temperature of a still hot 31.8°C (89.2°F), bearing a close resemblance to November. Throughout the month of December, Onambutu sees a steady low-temperature average of 23.3°C (73.9°F).

Heat index

December's mean heat index is computed to be a hot 33°C (91.4°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

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

Rainfall

In Onambutu, during December, the rain falls for 16.4 days and regularly aggregates up to 61mm (2.4") of precipitation. Throughout the year, there are 91.8 rainfall days, and 272mm (10.71") of precipitation is accumulated.

Daylight

December has the longest days of the year in Onambutu, Namibia, with an average of 13h and 12min of daylight.
On the first day of December, sunrise is at 06:10 and sunset at 19:17. On the last day of the month, sunrise is at 06:23 and sunset at 19:33 CAT.

Sunshine

In December, the average sunshine is 9.1h.

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 hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Updated: Jun 4, 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 31.8°C (89.2°F) and 23.3°C (73.9°F) respectively. In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 33°C (91.4°F).

The average relative humidity in December is 44%.

In Onambutu, during December, the rain falls for 16.4 days and regularly aggregates up to 61mm (2.4") of precipitation.

The month with the longest days in Onambutu is December, with an average of 13h and 12min of daylight.

In Onambutu, the average day length in December is 13h and 10min.

In December, on the first day of the month, sunrise is at 06:10 and sunset at 19:17. On the last day of the month, sunrise is at 06:23 and sunset at 19:33 CAT.

In Onambutu, the average sunshine duration in December is 9.1h.

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

In Onambutu, the average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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

31.8°C

31.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13km/h

12.4km/h

12km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

15.5

12.6

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Onambutu, 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
Onambutu, 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
Onambutu, 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
Onambutu, 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
Onambutu, 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
Onambutu, 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
Onambutu, 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 6min

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
Onambutu, 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
Onambutu, 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
Onambutu, 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
Onambutu, 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).