December weather forecast
Santiago de Cuba, Cuba

December in Santiago de Cuba welcomes a perceptible change in the city's climatological conditions. The trend of decrease in rainfall continues, capping the annual precipitation figures at 25mm (0.98"). The sea experiences a cooling trend, going down to 27.8°C (82°F), yet it is still warm enough for sea activities. Despite these changes, the wind and visibility conditions maintain steadiness, providing a suitable environment for city exploration. This subtle shift in weather sets the stage for the new year.

Temperature

December's onset records a minor alteration in the average high-temperature to a still moderately hot 28.5°C (83.3°F) from November's 29.1°C (84.4°F). Santiago de Cuba experiences an average temperature drop to an agreeable 20.5°C (68.9°F) during December nights.

Heat index

The heat index value during December is calculated to be a hot 33°C (91.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The average relative humidity in December in Santiago de Cuba is 80%.

Rainfall

In Santiago de Cuba, in December, it is raining for 12.1 days, with typically 25mm (0.98") of accumulated precipitation. Throughout the year, there are 183.7 rainfall days, and 516mm (20.31") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Santiago de Cuba is 27.8°C (82°F).
Note: Engaging in swimming, diving, or other water activities is highly enjoyable in temperatures ranging from 25°C (77°F) to 29°C (84.2°F), without any unpleasant sensations for prolonged durations.

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year in Santiago de Cuba.
On the first day of the month, sunrise is at 06:22 and sunset at 17:22. On the last day of December, in Santiago de Cuba, sunrise is at 06:38 and sunset at 17:35 CST.

Sunshine

The average sunshine in December is 7h.

UV index

January through March, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Santiago de Cuba. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! Reflections from sand and water can intensify the Sun's UV radiation.