December weather forecast
Saul, French Guiana

Closing out the year, December firmly realigns with the weather mood set in the first quarter. Rainfall increases to 112mm (4.41"), and relative humidity reaches 85%. The number of sunlit hours reduces, matching the level seen at the year's start. Saul's weather in December gravitates towards a cooler range. A reversion back to the moisture-rich, rain-heavy weather marks the full circle of Saul's climatic journey over the year.

Temperature

The move into December indicates a slight reduction in the average high-temperature, down from November's 34°C (93.2°F) to a still hot 30.8°C (87.4°F). Saul experiences a mean low-temperature of 20.9°C (69.6°F) during December.

Heat index

In December, the heat index is evaluated at a blistering 42°C (107.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Saul, the average relative humidity in December is 85%.

Rainfall

In Saul, during December, the rain falls for 26.2 days and regularly aggregates up to 112mm (4.41") of precipitation. Throughout the year, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 54min of daylight.
On the first day of December, sunrise is at 06:25 and sunset at 18:19. On the last day of the month, sunrise is at 06:39 and sunset at 18:33 -03.

Sunshine

In Saul, the average sunshine in December is 5.6h.

UV index

The months with the lowest UV index in Saul are January, March and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 during December translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.