December weather forecast
Cayo Largo del Sur, Cuba

Closing the loop, December in Cayo Largo del Sur presents mixed responses from the climate. A careful balance between warmth and chill defines the city's rhythm as the year comes to a close. Markedly, rain becomes less common, paving way for drier conditions. The sea still maintains an inviting temperature, offering opportunities for underwater exploration. December is characterized by a further drop in rainfall, trickling down to a mere 20mm (0.79"), triggers the onset of the dry season.

Temperature

Cayo Largo del Sur signifies an average high-temperature of a still warm 28°C (82.4°F) in December, closely mirroring the 29°C (84.2°F) of November. Cayo Largo del Sur throughout December, experiences an average nighttime temperature of 17°C (62.6°F).

Rainfall

The month with the least rainfall is December, when the rain falls for 9 days and typically collects 20mm (0.79") of precipitation.

Sea temperature

In Cayo Largo del Sur, in December, the average water temperature is 27°C (80.6°F).
Note: Water activities including swimming and diving at temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.

Daylight

December has the shortest days of the year, with an average of 10h and 48min of daylight.
On the first day of December, sunrise is at 06:48 and sunset at 17:42. On the last day of the month, sunrise is at 07:04 and sunset at 17:54 CST.

Sunshine

The months with the least sunshine are January, February, June, November and December, with an average of 7h of sunshine.

UV index

January, November and December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 7 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Notice! The reflection of water and sand increases the UV radiation significantly.