December weather forecastHappy Hill, Grenada
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Happy Hill, Grenada, with an average temperature varying between 26.7°C (80.1°F) and 27.7°C (81.9°F).Temperature
Stepping into December, Happy Hill records an average high-temperature of a still warm 27.7°C (81.9°F), almost consistent with November. December nights in Happy Hill register a minor temperature decline, steadying at a still moderately hot 26.7°C (80.1°F).Heat index
December's heat index is evaluated at a hot 31°C (87.8°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In December, the average relative humidity in Happy Hill is 77%.Rainfall
In Happy Hill, during December, the rain falls for 21.7 days and regularly aggregates up to 55mm (2.17") of precipitation. Throughout the year, there are 232 rainfall days, and 739mm (29.09") of precipitation is accumulated.Daylight
The month with the shortest days in Happy Hill is December, 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, sunrise is at 06:27 and sunset at 17:53 AST.
Sunshine
December has the least sunshine of the year in Happy Hill, with an average of 6.3h of sunshine.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 in Happy Hill are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 7 during December leads to these instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Happy Hill, 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
Happy Hill, 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
Happy Hill, 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
Happy Hill, 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
Happy Hill, 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
Happy Hill, 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
Happy Hill, Grenada
- Average daylight in December: 11h and 24min
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 18min
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
Happy Hill, 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
Happy Hill, 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
Happy Hill, 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
Happy Hill, 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).
