December weather forecast
Gibara, Cuba

Finally, December wraps up the year with temperatures sliding further and a noticeable increase in wind speed peaking at 20km/h (12.4mph). Despite the cooler air, sea temperatures stay warm, serving as a robust reminder of the year-round appeal of the sea in Gibara. Daylight hours lessen, conferring a feeling of a year closing in. The weather holds steadfast at an average pressure of 1016.1mb. Surely, December is an intriguing mix of cooler air, moderate sunlight and comfortable sea temperatures.

Temperature

The onset of December in Gibara brings with it an average high-temperature of a still warm 27.2°C (81°F), showing a negligible variation from the month before. December nights in Gibara, Cuba, document an average temperature reading of 23.8°C (74.8°F).

Heat index

For most parts of December, the heat index is evaluated at a tropical 30°C (86°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

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

Rainfall

In December, in Gibara, the rain falls for 16 days. Throughout December, 34mm (1.34") of precipitation is accumulated. In Gibara, during the entire year, the rain falls for 186.6 days and collects up to 480mm (18.9") of precipitation.

Sea temperature

In Gibara, in December, the average water temperature is 26.9°C (80.4°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 in Gibara, Cuba, with an average of 10h and 54min of daylight.
On the first day of the month, sunrise is at 06:25 and sunset at 17:22. On the last day of December, sunrise is at 06:41 and sunset at 17:34 CST.

Sunshine

The average sunshine in December is 6.4h.

UV index

The months with the lowest UV index are January through March and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Ward off overexposure. Defence against solar harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.