December weather forecast
Les Cayes, Haiti

December gets cooler and drier, recording the least rainfall of 68mm (2.68"), and announces the advent of the holiday month in Les Cayes, Haiti. Slightly chillier nights and lower maximum temperatures lay the ground for winter's hush to settle in. The sea continues to cool, and daylight hours dwindle to their annual low. Despite the retreat of the sun, clear skies allow for a moderate UV index. As the year draws to a close, December holds something special, soothing everyone with its unique mix of sunny and dry conditions.

Temperature

January, February and December bring Les Cayes's lowest average temperatures, reaching a high of 29°C (84.2°F).

Rainfall

The month with the least rainfall is December, when the rain falls for 9 days and typically collects 68mm (2.68") of precipitation.

Sea temperature

In Les Cayes, in December, the average water temperature is 28.3°C (82.9°F).
Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.

Daylight

December has the shortest days of the year in Les Cayes, Haiti, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:10 and sunset at 17:17. On the last day of December, in Les Cayes, sunrise is at 06:26 and sunset at 17:30 EST.

Sunshine

January, May, June, 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 in Les Cayes are January and December, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 8 suggests this advice:
Protection should always be a priority. Skin and eyes are vulnerable without it. 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. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.