December weather forecast
Mondésir, French Guiana

December, the first month of the winter in Mondésir, is also a moderately hot month, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 28.8°C (83.8°F).

Temperature

December welcomes an average high-temperature of a moderately hot 28.8°C (83.8°F), not much different from the preceding month. Recording a slight decline in temperature during the nights, Mondésir's December temperatures average at 24.5°C (76.1°F).

Heat index

The heat index for December is evaluated at a very hot 35°C (95°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

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

Rainfall

In Mondésir, during December, the rain falls for 25.2 days and regularly aggregates up to 204mm (8.03") of precipitation. Throughout the year, there are 277 rainfall days, and 1707mm (67.2") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Mondésir, French Guiana, with an average of 11h and 54min of daylight.
On the first day of the month, sunrise is at 06:23 and sunset at 18:17. On the last day of December, sunrise is at 06:37 and sunset at 18:31 -03.

Sunshine

In Mondésir, the average sunshine in December is 7.3h.

UV index

The months with the lowest UV index are January through May and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.