December weather forecast
Calivigny, Grenada

December signals the end of the year and the rainy season in Calivigny, Grenada, with a significant drop in rainfall to 55mm (2.17"). The temperature starts to drop slightly with highs of 27.7°C (81.9°F) and lows of 26.7°C (80.1°F). Despite these changes, the relative humidity remains steady at 77%, maintaining the same level as in January. While cloud cover diminishes slightly from November, the amount of sunshine in December is slightly increased. Wind speeds in December meet the year's highest average of 28.2km/h (17.5mph), providing a refreshing atmosphere even during the warmer parts of the day.

Temperature

Entering December, the average high-temperature is recorded at a still moderately hot 27.7°C (81.9°F), exhibiting a minimal shift from November's 28.4°C (83.1°F). Calivigny, in December, registers an average low temperature of 26.7°C (80.1°F), showing a minute reduction from daily highs.

Heat index

The heat index for December is evaluated at a tropical 31°C (87.8°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Calivigny, in December, during 21.7 rainfall days, 55mm (2.17") of precipitation is typically accumulated. In Calivigny, during the entire year, the rain falls for 232 days and collects up to 739mm (29.09") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 24min of daylight.
On the first day of December, sunrise is at 06:12 and sunset at 17:40. On the last day of the month, sunrise is at 06:27 and sunset at 17:53 AST.

Sunshine

The month with the least sunshine is December, with an average of 6.3h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.