December weather forecast
Mantari, Congo

December, the first month of the summer in Mantari, is still a warm month, with an average temperature varying between 21.2°C (70.2°F) and 29.2°C (84.6°F).

Temperature

The month of December sees the lowest average temperatures, reaching 29.2°C (84.6°F) at the peak and 21.2°C (70.2°F) at the low.

Heat index

For most parts of December, the heat index is estimated at a fiery hot 37°C (98.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

With an average relative humidity of 87%, December is the most humid month in Mantari.

Rainfall

In December, the rain falls for 28.7 days. Throughout December, 181mm (7.13") of precipitation is accumulated. In Mantari, during the entire year, the rain falls for 234.2 days and collects up to 1298mm (51.1") of precipitation.

Daylight

December has the longest days of the year in Mantari, Congo, with an average of 12h and 24min of daylight.
On the first day of December in Mantari, sunrise is at 05:41 and sunset at 18:02. On the last day of the month, sunrise is at 05:55 and sunset at 18:17 WAT.

Sunshine

In Mantari, Congo, the average sunshine in December is 8.2h.

UV index

The months with the lowest UV index in Mantari are January through July, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 6 in December translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.