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
Grand Roy registers an average high-temperature of a still moderately hot 27.7°C (81.9°F) at the commencement of December, closely related to the preceding month. Grand Roy's evenings during December maintain an average temperature of 26.7°C (80.1°F), aligning closely with the daytime temperatures.Heat index
Throughout December, the heat index is appraised at a hot 31°C (87.8°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In December, the average relative humidity in Grand Roy is 77%.Rainfall
In Grand Roy, in December, during 21.7 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, there are 232 rainfall days, and 739mm (29.09") of precipitation is accumulated.Daylight
December has the shortest days of the year in Grand Roy, with an average of 11h and 24min of daylight.On the first day of the month, sunrise is at 06:12 and sunset at 17:40. On the last day of December, in Grand Roy, sunrise is at 06:27 and sunset at 17:53 AST.
Sunshine
With an average of 6.3h of sunshine, December has the least sunshine of the year.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. 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 radiation for average individuals.Note: A maximum UV index of 7 in December translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grand Roy in December?
What is the average humidity in December in Grand Roy?
How many days does it rain in December in Grand Roy?
What is the month with the shortest days in Grand Roy?
How many hours of daylight does Grand Roy have in December?
When is the sunrise / sunset in December in Grand Roy?
What is the month with the least sunshine in Grand Roy?
How many hours of sunshine does Grand Roy have in December?
When is the highest UV index in Grand Roy?
When is the lowest UV index in Grand Roy?
How high is the UV index in December in Grand Roy?
Average temperature in December
Grand Roy, Grenada
- Average high temperature in December: 27.7°C
The warmest months (with the highest average high temperature) are September and October (28.8°C).
The month with the lowest average high temperature is February (26.7°C).
- Average low temperature in December: 26.7°C
The month with the highest average low temperature is September (28.1°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).
Average pressure in December
Grand Roy, Grenada
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is June (1014.2mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in December
Grand Roy, Grenada
- Average wind speed in December: 28.2km/h
The windiest month (with the highest average wind speed) is February (29.4km/h).
The calmest month (with the lowest average wind speed) is September (21.5km/h).
Average humidity in December
Grand Roy, Grenada
- Average humidity in December: 77%
The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are February and September (76%).
Average rainfall in December
Grand Roy, Grenada
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is October (110mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Grand Roy, Grenada
- Average rainfall days in December: 21.7 days
The months with the highest number of rainy days are July and August (22.3 days).
The month with the least rainy days is April (14.8 days).
Average daylight in December /
Average sunshine in December
Grand Roy, Grenada
- Average daylight in December: 11h and 2min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in December: 6h and 2min
The months with the most sunshine are August and September (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Grand Roy, Grenada
- Average sunshine days in December: 5.6 days
The months with the most sunshine days are April and October (9.2 days).
The month with the least sunshine days is July (4.6 days).
Average UV index in December
Grand Roy, Grenada
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Grand Roy, Grenada
- Average cloud cover in December: 42
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in December
Grand Roy, Grenada
- 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).
Grand Roy, Grenada
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