December weather forecast
Guardalavaca, Cuba

December offers a somewhat milder climate in Guardalavaca, with evening temperatures dropping to 23.8°C (74.8°F). A significant decrease in rainfall from November to 34mm (1.34") invites the onset of the drier season. The sea temperature dips to its year’s low of 26°C (78.8°F), but still remains inviting for those who enjoy water activities. With longer nights, the daylight hours reduce, although clear, sunny days continue to be a common sight. December encapsulates mild breezes, pleasant temperatures, and relatively less rain, which create a quintessentially Caribbean winter experience.

Temperature

December's arrival registers an average high-temperature of a still warm 27.2°C (81°F), closely aligning with the temperature of the previous month. Guardalavaca experiences an average nighttime temperature of 23.8°C (74.8°F) in December, reflecting a minor difference from the day's peak.

Heat index

In December, the heat index is estimated at a tropical 30°C (86°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

January, October through December, with an average relative humidity of 78%, are the most humid months in Guardalavaca.

Rainfall

In Guardalavaca, during December, the rain falls for 16 days and regularly aggregates up to 34mm (1.34") of precipitation. In Guardalavaca, during the entire year, the rain falls for 186.6 days and collects up to 480mm (18.9") of precipitation.

Sea temperature

In Guardalavaca, in December, the average water temperature is 26°C (78.8°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

December has the shortest days of the year, with an average of 10h and 54min of daylight.
On the first day of the month, sunrise is at 06:24 and sunset at 17:20. On the last day of December, sunrise is at 06:40 and sunset at 17:32 CST.

Sunshine

In Guardalavaca, the average sunshine in December is 6.4h.

UV index

January through March and December, with an average maximum UV index of 6, are months with the lowest UV index in Guardalavaca. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the UV index of 6 transforms into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.