December weather forecast
Port Antonio, Jamaica

Port Antonio weather in December marks the commencement of the dry season again. The drastic reduction in rainfall and cooler temperatures indicate a transition to less humid conditions. Despite fewer daylight and sunshine hours, outdoor activities remain enjoyable. Lowering of sea temperatures hint at seas getting cooler. With the UV index dropping to 8, the sun’s radiation intensity lessens noticeably.

Temperature

Lowest temperatures in Port Antonio are observed in January through March, November and December, averaging a high-temperature of 29°C.

Rainfall

In Port Antonio, in December, during 8 rainfall days, 279mm of precipitation is typically accumulated. Throughout the year, there are 125 rainfall days, and 2639mm of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Port Antonio, Jamaica, is 28.2°C.
Note: Water temperature between 25°C and 29°C is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The month with the shortest days in Port Antonio is December, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:21 and sunset at 17:28. On the last day of December, in Port Antonio, sunrise is at 06:36 and sunset at 17:40 EST.

Sunshine

In Port Antonio, the average sunshine in December is 7h.

UV index

January and December, with an average maximum UV index of 8, are months with the lowest UV index in Port Antonio. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 8 in December converts into the following recommendations:
Always take precautions; unprotected eyes and skin can be damaged rapidly. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.