December weather forecast
Mounongo, Gabon

The first month of the summer, December, is also a hot month in Mounongo, Gabon, with an average temperature ranging between max 31.7°C (89.1°F) and min 21.3°C (70.3°F).

Temperature

The shift into December records an average high-temperature of a still hot 31.7°C (89.1°F), subtly varied from November's 30.5°C (86.9°F). Throughout the month of December, Mounongo sees a steady low-temperature average of 21.3°C (70.3°F).

Heat index

For December, the heat index is calculated to be a scorching 44°C (111.2°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Mounongo, in December, during 24.9 rainfall days, 81mm (3.19") of precipitation is typically accumulated. Throughout the year, there are 311.1 rainfall days, and 1474mm (58.03") of precipitation is accumulated.

Daylight

With an average of 12h and 12min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:55 and sunset at 18:06. On the last day of December, sunrise is at 06:09 and sunset at 18:20 WAT.

Sunshine

The month with the most sunshine is December, with an average of 9.5h of sunshine.

UV index

The months with the highest UV index are January through May, July, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during December translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.