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 brings an average high-temperature of a still tropical 32°C (89.6°F), nearly identical to the preceding month. The temperature dips to an average of 23.2°C (73.8°F) during December nights.Heat index
For December, the heat index is estimated at a tropical 33°C (91.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
The average relative humidity in December is 44%.Rainfall
In Onesi, in December, it is raining for 17.1 days, with typically 78mm (3.07") of accumulated precipitation. Throughout the year, there are 100.8 rainfall days, and 379mm (14.92") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 13h and 12min of daylight.On the first day of December, sunrise is at 06:17 and sunset at 19:23. On the last day of the month, sunrise is at 06:29 and sunset at 19:39 CAT.
Sunshine
In Onesi, the average sunshine in December 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 the average person.Note: A maximum high UV index of 7 in December translates into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
How many hours of daylight does Onesi have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the highest UV index?
How high is the UV index in December?
Average temperature in December
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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
Onesi, 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).
