December weather forecast
Guantanamo, Cuba

December in Guantanamo welcomes the year-end with winter conditions, characterised by reduced daylight and cooler temperatures. Showing a significant drop from November's rainfall, December sees fewer showers at 24mm (0.94"), marking the start of the dry season. It's a stark difference from the heat and humidity that dominated the city just a few months prior in August. Comparing to January, December is slightly cooler and has more humidity, adding a crisp aspect to the air. Consequently, December's weather marks the end of a year-long cycle, preparing the city for the climatic repetition in the forthcoming year.

Temperature

Guantanamo commences December with an average high-temperature of a still moderately hot 28.3°C (82.9°F), maintaining a close resemblance to the previous month. During the month of December, Guantanamo anticipates a mean low-temperature of 21.2°C (70.2°F).

Heat index

In December, the heat index is calculated to be a tropical 33°C (91.4°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

The average relative humidity in December in Guantanamo is 80%.

Rainfall

In Guantanamo, in December, during 11.9 rainfall days, 24mm (0.94") of precipitation is typically accumulated. In Guantanamo, during the entire year, the rain falls for 209 days and collects up to 646mm (25.43") of precipitation.

Daylight

The month with the shortest days in Guantanamo is December, with an average of 10h and 54min of daylight.
On the first day of December in Guantanamo, sunrise is at 06:20 and sunset at 17:20. On the last day of the month, sunrise is at 06:36 and sunset at 17:32 CST.

Sunshine

In December, the average sunshine in Guantanamo, Cuba, is 7.2h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In December, an average UV index of 6 transforms into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Stay sun-safe with clothing that is both closely woven and worn loosely.