December weather forecastSand Bluff, Cayman Islands
December
Weather in December
December concludes the year in Sand Bluff, Cayman Islands with cooler, more agreeable conditions. A palpable drop in temperatures alongside a commensurate dip in rainfall to 57mm (2.24"), paints the onset of winter. The gently dropping pressure value to 1015.2mb rounds off the climatic picture for the year. The fewer daylight hours and declining sunshine highlight December's winter onset. Despite reduced sunlight, it remains a favored period for vacationers seeking a tropical escape with a hint of winter chill.Temperature
Sand Bluff's weather in December indicates an average high-temperature of a still moderately hot 27.2°C (81°F), nearly consistent with the 28°C (82.4°F) of November. Sand Bluff, in the month of December, notes an average low temperature of 26.1°C (79°F), indicating a small decrease from the daytime highs.Heat index
The heat index in December is estimated at a tropical 30°C (86°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.The standards for the heat index are set for locations in shade and under light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
In Sand Bluff, the average relative humidity in December is 76%.Rainfall
In Sand Bluff, in December, it is raining for 20.6 days, with typically 57mm (2.24") of accumulated precipitation. Throughout the year, there are 241.1 rainfall days, and 854mm (33.62") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 11h and 0min of daylight.On the first day of the month, sunrise is at 06:42 and sunset at 17:45. On the last day of December, sunrise is at 06:57 and sunset at 17:57 EST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year in Sand Bluff.UV index
The months with the highest UV index in Sand Bluff are February through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 7 in December transforms into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sand Bluff, Cayman Islands
- Average high temperature in December: 27.2°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is February (26.2°C).
- Average low temperature in December: 26.1°C
The month with the highest average low temperature is August (28.6°C).
The coldest month (with the lowest average low temperature) is March (24.9°C).
Average pressure in December
Sand Bluff, Cayman Islands
- Average pressure in December: 1015.2mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).
Average wind speed in December
Sand Bluff, Cayman Islands
- Average wind speed in December: 26.4km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is September (17.2km/h).
Average humidity in December
Sand Bluff, Cayman Islands
- Average humidity in December: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is September (74%).
Average rainfall in December
Sand Bluff, Cayman Islands
- Average rainfall in December: 57mm
The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is March (24mm).
Average rainfall days in December
Sand Bluff, Cayman Islands
- Average rainfall days in December: 20.6 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is March (16 days).
Average daylight in December /
Average sunshine in December
Sand Bluff, Cayman Islands
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 6h and 0min
The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Sand Bluff, Cayman Islands
- Average sunshine days in December: 4.3 days
The month with the most sunshine days is March (9.3 days).
The month with the least sunshine days is November (2.5 days).
Average UV index in December
Sand Bluff, Cayman Islands
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in December
Sand Bluff, Cayman Islands
- Average cloud cover in December: 39
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 28).
Average visibility in December
Sand Bluff, Cayman Islands
- 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).
