Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Stepping into December, Grande Riviere records an average high-temperature of a still warm 28.2°C (82.8°F), almost consistent with November. Grande Riviere indicates a consistently low-temperature of 25.7°C (78.3°F) during the nights of December.Heat index
During December, the heat index is calculated to be a tropical 32°C (89.6°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In December, the average relative humidity is 74%.Rainfall
In Grande Riviere, in December, it is raining for 19.1 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Grande Riviere, there are 255.2 rainfall days, and 560mm (22.05") of precipitation is accumulated.Daylight
December has the shortest days of the year in Grande Riviere, with an average of 11h and 18min of daylight.On the first day of the month, sunrise is at 06:12 and sunset at 17:33. On the last day of December, in Grande Riviere, Saint Lucia, sunrise is at 06:27 and sunset at 17:46 AST.
Sunshine
December has the least sunshine of the year, with an average of 6.4h of sunshine.UV index
January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 7 during December translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Grande Riviere in December?
What is the average humidity in December in Grande Riviere?
How many days does it rain in December in Grande Riviere?
What is the month with the shortest days in Grande Riviere?
How many hours of daylight does Grande Riviere have in December?
When is the sunrise / sunset in December in Grande Riviere?
What is the month with the least sunshine in Grande Riviere?
How many hours of sunshine does Grande Riviere have in December?
What is the month with the highest UV index in Grande Riviere?
What is the UV index intensity in December in Grande Riviere?
Average temperature in December
Grande Riviere, Saint Lucia
- Average high temperature in December: 28.2°C
The warmest month (with the highest average high temperature) is September (30.3°C).
The months with the lowest average high temperature are January and February (27.5°C).
- Average low temperature in December: 25.7°C
The month with the highest average low temperature is October (27.2°C).
The coldest month (with the lowest average low temperature) is March (25°C).
Average pressure in December
Grande Riviere, Saint Lucia
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is June (1015mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).
Average wind speed in December
Grande Riviere, Saint Lucia
- Average wind speed in December: 22.5km/h
The windiest month (with the highest average wind speed) is February (24.7km/h).
The calmest month (with the lowest average wind speed) is September (16.7km/h).
Average humidity in December
Grande Riviere, Saint Lucia
- Average humidity in December: 74%
The months with the highest relative humidity are May, June, July, August and November (75%).
The months with the lowest relative humidity are January, February, March and September (73%).
Average rainfall in December
Grande Riviere, Saint Lucia
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days in December
Grande Riviere, Saint Lucia
- Average rainfall days in December: 19.1 days
The month with the highest number of rainy days is July (26.5 days).
The month with the least rainy days is February (16.4 days).
Average daylight in December /
Average sunshine in December
Grande Riviere, Saint Lucia
- Average daylight in December: 11h and 2min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is April (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Grande Riviere, Saint Lucia
- Average sunshine days in December: 7.3 days
The month with the most sunshine days is January (7.8 days).
The month with the least sunshine days is July (0.8 days).
Average UV index in December
Grande Riviere, Saint Lucia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).
Average cloud cover in December
Grande Riviere, Saint Lucia
- Average cloud cover in December: 43
The months with the most cloud cover are June and July (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 38).
Average visibility in December
Grande Riviere, Saint Lucia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Grande Riviere, Saint Lucia
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