December weather forecast
Roche Bardo, French Guiana

December, the first month of the winter in Roche Bardo, is also a hot month, with temperature in the range of an average low of 22.7°C (72.9°F) and an average high of 30.2°C (86.4°F).

Temperature

Roche Bardo's December showcases an average high-temperature of a still hot 30.2°C (86.4°F), hardly distinct from November's 32.4°C (90.3°F). Roche Bardo's nights in December experience an average temperature drop to an agreeable 22.7°C (72.9°F).

Heat index

December's mean heat index is appraised at a fiery hot 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

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

Rainfall

In Roche Bardo, French Guiana, in December, it is raining for 21.9 days, with typically 84mm (3.31") of accumulated precipitation. In Roche Bardo, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of December in Roche Bardo, sunrise is at 06:28 and sunset at 18:19. On the last day of the month, sunrise is at 06:43 and sunset at 18:33 -03.

Sunshine

The average sunshine in December 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. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.