December weather forecast
Aguadilla, PR

Closing the year, December's weather in Aguadilla stands apart for being the coolest month, with average highs and lows dropping to 81.5°F (27.5°C) and 76.5°F (24.7°C) respectively. Despite the drop in temperature, sea temperatures remain pleasantly warm, still remaining conducive for sea lovers. Rainfall registers a noticeable decrease, falling to 1.54" (39mm), the lowest for the year. Stronger winds prevail, with speeds reaching up to 11.2mph (18km/h), adding a crisp edge to the air. As daylight hours continue to shrink, Aguadilla bears witness to the palpable shift from the stirred climate of November to the gentle calm of the year-end.

Temperature

Aguadilla's average high-temperature in December sits at a still moderately hot 81.5°F (27.5°C), showing little difference from the previous month. During the month of December, Aguadilla's average nighttime temperature closely mirrors its daytime counterpart, at a still moderately hot 76.5°F (24.7°C).

Heat index

In December, the heat index is appraised at a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In Aguadilla, Puerto Rico, the average relative humidity in December is 76%.

Rainfall

In December, in Aguadilla, the rain falls for 16.7 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. In Aguadilla, during the entire year, the rain falls for 235.5 days and collects up to 31.97" (812mm) of precipitation.

Ocean temperature

In Aguadilla, Puerto Rico, the average seawater temperature in December is 81.9°F (27.7°C).
Note: Swimming, diving, and similar water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

With an average of 11h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:44 am and sunset at 5:50 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:03 pm AST.

Sunshine

The average sunshine in December in Aguadilla is 7.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Aguadilla. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.