December weather forecast
Mamora Bay, Antigua and Barbuda

The year rounds off in December with a noticeable decline in rainfall and a marginal dip in temperature. Slightly cooler weather offers respite from the heavy humidity felt in previous months. The warm sea temperature continues to be an inviting conduit for engaging water sports. An average rainfall amount of 88mm (3.46") is spread across 18 days in December. Mamora Bay, Antigua and Barbuda, thus preserves the tropical charm throughout the year.

Temperature

The weather during December records an average high-temperature of a warm 29°C (84.2°F), closely mirroring the preceding month. During the nights in December, an average low-temperature of 23°C (73.4°F) is observed.

Rainfall

In Mamora Bay, in December, it is raining for 18 days, with typically 88mm (3.46") of accumulated precipitation. In Mamora Bay, during the entire year, the rain falls for 188 days and collects up to 1040mm (40.94") of precipitation.

Sea temperature

In December, the average sea temperature is 27°C (80.6°F).
Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

The month with the shortest days is December, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:20 and sunset at 17:31. On the last day of December, in Mamora Bay, sunrise is at 06:36 and sunset at 17:44 AST.

Sunshine

September through December, with an average of 7h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 8 translates into the following recommendations:
Ensure safety measures are in place, as skin and eyes are vulnerable to quick damage. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! The Sun's UV rays intensify with reflections from sand and water.