December weather forecastMoungoundi, Gabon

Weather in December

The first month of the summer, December, is also a moderately hot month in Moungoundi, Gabon, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 29°C (84.2°F).

Temperature

The onset of December manifests an average high-temperature of a still moderately hot 29°C (84.2°F), demonstrating a minor variation from the preceding month. During December, Moungoundi records a consistent average nighttime temperature of 21.3°C (70.3°F).

Heat index

The heat index in December is evaluated at a fiery hot 37°C (98.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In December, the average relative humidity is 90%.

Rainfall

In Moungoundi, during December, the rain falls for 30.2 days and regularly aggregates up to 236mm (9.29") of precipitation. Throughout the year, there are 274.1 rainfall days, and 1640mm (64.57") of precipitation is accumulated.

Daylight

With an average of 12h and 18min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:55 and sunset at 18:11. On the last day of the month, sunrise is at 06:08 and sunset at 18:26 WAT.

Sunshine

In Moungoundi, Gabon, the average sunshine in December is 6.2h.

UV index

The months with the lowest UV index in Moungoundi are October through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 5 in December translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.