December weather forecast
Mantaba, Congo

The first month of the summer, December, is still a warm month in Mantaba, Congo, with an average temperature varying between 21.5°C (70.7°F) and 29.8°C (85.6°F).

Temperature

The advent of December brings an average high-temperature of a still warm 29.8°C (85.6°F), almost identical to the preceding month. December nights are marked by an average low-temperature of 21.5°C (70.7°F).

Heat index

The heat index value during December is estimated at a fiery hot 38°C (100.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

With an average relative humidity of 83%, December is the most humid month.

Rainfall

In December, the rain falls for 29 days. Throughout December, 167mm (6.57") of precipitation is accumulated. In Mantaba, Congo, during the entire year, the rain falls for 243.1 days and collects up to 1109mm (43.66") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 24min of daylight.
On the first day of the month, sunrise is at 05:38 and sunset at 18:01. On the last day of December, in Mantaba, sunrise is at 05:52 and sunset at 18:15 WAT.

Sunshine

In December, the average sunshine is 9h.

UV index

The months with the lowest UV index are February, June, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.