December weather forecastOlombo, Congo
December
Weather in December
December, the first month of the summer in Olombo, is still a tropical month, with temperature in the range of an average high of 31.5°C (88.7°F) and an average low of 22.3°C (72.1°F).Temperature
December's weather displays an average high-temperature of a still hot 31.5°C (88.7°F), slightly varied from November's 30°C (86°F). Olombo, during the month of December, experiences an average low-temperature of 22.3°C (72.1°F).Heat index
Throughout December, the heat index is appraised at a blisteringly hot 40°C (104°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Heat index's context suggests values are appropriate for shady areas and slight breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The average relative humidity in December is 74%.Rainfall
In December, the rain falls for 24 days. Throughout December, 108mm (4.25") of precipitation is accumulated. In Olombo, during the entire year, the rain falls for 276.3 days and collects up to 1248mm (49.13") of precipitation.Daylight
The month with the longest days is December, with an average of 12h and 12min of daylight.On the first day of December, sunrise is at 05:39 and sunset at 17:51. On the last day of the month, sunrise is at 05:53 and sunset at 18:05 WAT.
Sunshine
In Olombo, the average sunshine in December is 9.7h.UV index
January through August, October 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 rays for average individuals.Note: An average maximum UV index of 7 in December leads to these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Olombo, Congo
- Average high temperature in December: 31.5°C
The warmest month (with the highest average high temperature) is July (33.3°C).
The month with the lowest average high temperature is November (30°C).
- Average low temperature in December: 22.3°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is November (22.1°C).
Average pressure in December
Olombo, Congo
- Average pressure in December: 1010.2mbar
The month with the highest atmospheric pressure is June (1012.1mbar).
The month with the lowest atmospheric pressure is February (1009.3mbar).
Average wind speed in December
Olombo, Congo
- Average wind speed in December: 5.3km/h
The windiest month (with the highest average wind speed) is August (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.1km/h).
Average humidity in December
Olombo, Congo
- Average humidity in December: 74%
The months with the highest relative humidity are October and November (81%).
The month with the lowest relative humidity is July (57%).
Average rainfall in December
Olombo, Congo
- Average rainfall in December: 108mm
The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is July (21mm).
Average rainfall days in December
Olombo, Congo
- Average rainfall days in December: 24 days
The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is July (13.2 days).
Average daylight in December /
Average sunshine in December
Olombo, Congo
- Average daylight in December: 12h and 12min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in December: 9h and 42min
The month with the most sunshine is January (Average sunshine: 10h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).
Average sunshine days in December
Olombo, Congo
- Average sunshine days in December: 4.9 days
The month with the most sunshine days is July (15.9 days).
The month with the least sunshine days is October (0.4 days).
Average UV index in December
Olombo, Congo
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 7).
The month with the lowest UV index is September (UV index 6).
Average cloud cover in December
Olombo, Congo
- Average cloud cover in December: 36
The month with the most cloud cover is October (Cloud cover 47).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in December
Olombo, Congo
- Average visibility in December: 9km
The months with the highest visibility are February, June, July and August (10km).
The months with the lowest visibility are October and November (8km).








