December weather forecast
Olombo, Congo

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.