December weather forecast
Bita, French Guiana

December concludes the year with its weather reverting to the earlier rainy conditions. Rainfall significantly amplifies to 146mm (5.75"), hence the atmosphere turns noticeably damper. Correspondingly, temperatures decline, ensuring a mild chill in the air. As cloud cover increases substantially, Bita witnesses shorter sunshine hours and more overcast days. Overall, December reflects a transition back to the city's prevalent humid climate, attributing a fitting end to the year's weather cycle.

Temperature

December in Bita, French Guiana, is characterized by a mild reduction in the average high-temperature, from a tropical 33°C (91.4°F) in November to a moderately hot 29.8°C (85.6°F). An average low-temperature of 22°C (71.6°F) is noted during the nights in December in Bita.

Heat index

The heat index for December is evaluated at a torrid 39°C (102.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in December in Bita is 86%.

Rainfall

In Bita, during December, the rain falls for 25.1 days and regularly aggregates up to 146mm (5.75") of precipitation. In Bita, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

The month with the shortest days in Bita is December, with an average of 11h and 54min of daylight.
On the first day of December, sunrise is at 06:22 and sunset at 18:16. On the last day of the month, sunrise is at 06:36 and sunset at 18:30 -03.

Sunshine

In Bita, the average sunshine in December is 5.9h.

UV index

The months with the lowest UV index in Bita are January through July, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during December translates into the following guidance:
Resist overexposure. Safeguarding from solar damage is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.