December weather forecast
Ossouélé, Gabon

The first month of the summer, December, is a tropical month in Ossouélé, Gabon, with an average temperature varying between 21.4°C (70.5°F) and 30.3°C (86.5°F).

Temperature

The start of December marks an average high-temperature of a hot 30.3°C (86.5°F), hardly distinguishable from the conditions in November. Ossouélé experiences a nighttime temperature average of 21.4°C (70.5°F) during December.

Heat index

The heat index in December is estimated at a very hot 39°C (102.2°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in December is 82%.

Rainfall

In Ossouélé, during December, the rain falls for 27 days and regularly aggregates up to 129mm (5.08") of precipitation. Throughout the year, there are 293.4 rainfall days, and 1534mm (60.39") 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 December, sunrise is at 05:46 and sunset at 17:57. On the last day of the month, sunrise is at 06:00 and sunset at 18:11 WAT.

Sunshine

The month with the most sunshine is December, with an average of 9.9h of sunshine.

UV index

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during December leads to these instructions:
Shun overexposure. Protection from sun ravages is indispensable. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.