December weather forecast
Havana, Cuba

Welcoming the final month, December, Havana experiences a profound reduction in temperatures and rainfall. In contrast to November, December records the lowest average sea temperature of 25.7°C (78.3°F), offering cooler swimming experiences. With 11 daylight hours and 7 sunshine hours, it continues to offer plenty of opportunities for sightseeing and outdoor activities. Also, the cooler and drier conditions make December a preferred month for tourists. While the average temperature drops to 26.5°C (79.7°F), Havana retains its charming weather, perfect for holiday festivities.

Temperature

Havana records a slight change with December's average high-temperatures adjusting to a still moderately hot 26.5°C (79.7°F) from November's 27.7°C (81.9°F). Throughout the month of December, Havana observes an average nighttime temperature of 19.5°C (67.1°F).

Humidity

In December, the average relative humidity in Havana, Cuba, is 75%.

Rainfall

In December, in Havana, the rain falls for 5 days. Throughout December, 58mm (2.28") of precipitation is accumulated. Throughout the year, there are 80 rainfall days, and 1189mm (46.81") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Havana is 25.7°C (78.3°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

December has the shortest days of the year, with an average of 10h and 42min of daylight.
On the first day of December in Havana, sunrise is at 06:54 and sunset at 17:43. On the last day of the month, sunrise is at 07:10 and sunset at 17:55 CST.

Sunshine

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

UV index

January and December, with an average maximum UV index of 6, are months with the lowest UV index in Havana. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.