December weather forecast
Les Trois-Îlets, Martinique

December marks the end of the year with a fitting return to cooler temperatures and a decrease in rainfall. Transitioning from 26.7°C (80.1°F) in November to 26.2°C (79.2°F) in December reflects the trend towards a subtler coolness. The reduction in rainfall invites more opportunities for outdoor exploration under the shortened daylight hours. The sea temperature remains insistently warm, perpetuating an enticing invitation to relish in the Caribbean sun. The closing of the year invites reflection while being embraced by the pleasant December weather in Les Trois-Îlets, Martinique.

Temperature

As Les Trois-Îlets, Martinique, welcomes December, the average high-temperature stabilizes at a still warm 27.5°C (81.5°F), showing little deviation from November's 28.5°C (83.3°F). In Les Trois-Îlets, the nighttime temperature shows a slight difference from the daytime high, averaging to a still warm 26.2°C (79.2°F) during December.

Heat index

For December, the heat index is appraised at a hot 30°C (86°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In Les Trois-Îlets, the average relative humidity in December is 75%.

Rainfall

In Les Trois-Îlets, in December, during 20.8 rainfall days, 47mm (1.85") of precipitation is typically accumulated. In Les Trois-Îlets, during the entire year, the rain falls for 251.6 days and collects up to 667mm (26.26") of precipitation.

Sea temperature

In Les Trois-Îlets, Martinique, the average seawater temperature in December is 27.8°C (82°F).
Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.

Daylight

The month with the shortest days in Les Trois-Îlets is December, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:13 and sunset at 17:33. On the last day of December, in Les Trois-Îlets, sunrise is at 06:28 and sunset at 17:46 AST.

Sunshine

With an average of 6.4h of sunshine, December has the least sunshine of the year in Les Trois-Îlets, Martinique.

UV index

The months with the highest UV index in Les Trois-Îlets are January through December, with an average maximum UV index of 7. 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 vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in December transforms into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.