December weather forecast
Sania, French Guiana

The first month of the winter, December, is still a tropical month in Sania, French Guiana, with temperature in the range of an average high of 30.2°C (86.4°F) and an average low of 22.7°C (72.9°F).

Temperature

The commencement of December records an average high-temperature of a still tropical 30.2°C (86.4°F), barely varying from November's 32.4°C (90.3°F). In Sania, an average low-temperature of 22.7°C (72.9°F) is recorded during December nights.

Heat index

Throughout December, the heat index is calculated to be a fiery hot 39°C (102.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Sania, the average relative humidity in December is 83%.

Rainfall

In Sania, in December, during 21.9 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, in Sania, French Guiana, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:31 and sunset at 18:21. On the last day of December, in Sania, sunrise is at 06:45 and sunset at 18:35 -03.

Sunshine

In December, the average sunshine in Sania is 6.6h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index in Sania. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 6 suggests this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.