December weather forecast
Cayo Coco, Cuba

December ushers in the winter season in Cayo Coco, causing the temperature to drop further, ranging between 18°C (64.4°F) and 28°C (82.4°F). The rainfall decreases to its annual low of 42mm (1.65"), making the month drier and suitable for outdoor activities. The UV index dips to its lowest point, making the sun much less harsh. Sea temperature also recedes a bit, yet stays comfortable for sea-lovers. With 10.8 hours of daylight, the days are shorter, projecting the gradual drift of winter.

Temperature

In December, the average high-temperature registers at a still warm 28°C (82.4°F), nearly identical to November's 29°C (84.2°F). Throughout the month of December, the average temperature in Cayo Coco dips to an enjoyable 18°C (64.4°F) at night.

Rainfall

The month with the least rainfall in Cayo Coco is December, when the rain falls for 7 days and typically collects 42mm (1.65") of precipitation.

Sea temperature

In December, the average sea temperature in Cayo Coco is 26°C (78.8°F).
Note: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

December has the shortest days of the year, with an average of 10h and 48min of daylight.
On the first day of the month, sunrise is at 06:37 and sunset at 17:28. On the last day of December, in Cayo Coco, sunrise is at 06:53 and sunset at 17:40 CST.

Sunshine

January, February, June, September through December, with an average of 7h of sunshine, are months with the least sunshine in Cayo Coco.

UV index

With an average maximum UV index of 6, December is the month with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Warning! The Sun's UV rays intensify with reflections from sand and water.