December weather forecast
Maunabo, PR

Closing the calendar year, December in Maunabo brings a unique combination of warmth and crisp air. The year-end weather offers a sought-after respite from extreme cold in many parts of the world, making Maunabo an excellent destination for winter escapades. The sunlight hours reduce slightly from November, offering perfect conditions for leisurely strolls around the city. With wind gusts averaging 13mph (20.9km/h), December weather displays a slight liveliness, adding to the charm of the season. Overall, the year concludes on a comfortable note, thanks to the aligned weather conditions.

Temperature

The advent of December reveals an average high-temperature of a still warm 80.6°F (27°C), showing minimal difference from the prior month. During the December nights, Maunabo's temperature maintains an average close to the daytime highs, settling at a still warm 74.7°F (23.7°C).

Heat index

The average heat index in December is computed to be a tropical 86°F (30°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In December, the average relative humidity in Maunabo, Puerto Rico, is 79%.

Rainfall

In December, the rain falls for 14.9 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, in Maunabo, there are 223.2 rainfall days, and 27.87" (708mm) of precipitation is accumulated.

Daylight

With an average of 11h and 6min of daylight, December has the shortest days of the year in Maunabo, Puerto Rico.
On the first day of the month, sunrise is at 6:39 am and sunset at 5:46 pm. On the last day of December, sunrise is at 6:54 am and sunset at 5:59 pm AST.

Sunshine

December has the least sunshine of the year, with an average of 6.4h of sunshine.

UV index

The months with the lowest UV index are January through April and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in December transforms into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.