December weather forecastFlèche, French Guiana

Weather in December

The first month of the winter, December, is still a tropical month in Flèche, French Guiana, 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

The shift into December finds Flèche at an average high-temperature of a still tropical 30.2°C (86.4°F), closely comparable to November's conditions. An average nighttime temperature of 22.7°C (72.9°F) is recorded in Flèche, French Guiana, during December.

Heat index

In December, the average heat index is appraised at a fiery hot 39°C (102.2°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Flèche, French Guiana, the average relative humidity in December is 83%.

Rainfall

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

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of the month, sunrise is at 06:28 and sunset at 18:17. On the last day of December, in Flèche, sunrise is at 06:42 and sunset at 18:31 -03.

Sunshine

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

UV index

The months with the lowest UV index in Flèche are January through June and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.