December weather forecast
Spot Bay, Cayman Islands

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Weather in December

December in Spot Bay signals the definitive arrival of the winter season. An average high dip to 27.2°C (81°F) and an average low of 26.1°C (79°F) combined with reduced precipitation, marked at 57mm (2.24"), all point towards an envisaged winter. The slightly higher humidity and diminished heat from the sun provide a comforting reprieve from the intense summer heat. With longer nights and shorter days, December is a period of relaxation, celebration, and tranquility, rounding off the year on a pleasant note.

Temperature

The advent of December in Spot Bay, Cayman Islands, denotes an average high-temperature of a still moderately hot 27.2°C (81°F), subtly different from November's 28°C (82.4°F). Spot Bay's nocturnal December readings average at a still moderately hot 26.1°C (79°F), showing little variation from the daytime temperatures.

Heat index

During December, the heat index is evaluated at a hot 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In Spot Bay, the average relative humidity in December is 76%.

Rainfall

In Spot Bay, in December, during 20.6 rainfall days, 57mm (2.24") of precipitation is typically accumulated. In Spot Bay, during the entire year, the rain falls for 241.1 days and collects up to 854mm (33.62") of precipitation.

Daylight

The month with the shortest days in Spot Bay is December, with an average of 11h and 0min of daylight.
On the first day of the month, sunrise is at 06:37 and sunset at 17:38. On the last day of December, sunrise is at 06:53 and sunset at 17:51 EST.

Sunshine

The month with the least sunshine in Spot Bay is December, with an average of 6h of sunshine.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index in Spot Bay. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in December translates into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

What is the usual temperature for Spot Bay in December?

The high-temperature, in December, in Spot Bay, records 27.2°C (81°F), while the low-temperature is 26.1°C (79°F). In December, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 30°C (86°F).

What is the average humidity in December in Spot Bay?

The average relative humidity in December in Spot Bay, Cayman Islands, is 76%.

How many days does it rain in December in Spot Bay?

In Spot Bay, during December, the rain falls for 20.6 days and regularly aggregates up to 57mm (2.24") of precipitation.

What is the month with the shortest days in Spot Bay?

December has the shortest days of the year in Spot Bay, Cayman Islands, with an average of 11h and 0min of daylight.

How many hours of daylight does Spot Bay have in December?

In December, the average day length in Spot Bay, Cayman Islands, is 10h and 58min.

When is the sunrise / sunset in December in Spot Bay?

On the first day of December, sunrise is at 06:37 and sunset at 17:38. On the last day of the month, sunrise is at 06:53 and sunset at 17:51 EST.

What is the month with the least sunshine in Spot Bay?

The month with the least sunshine in Spot Bay, Cayman Islands, is December, with an average of 6h of sunshine.

How many hours of sunshine does Spot Bay have in December?

In December, the average sunshine duration in Spot Bay, Cayman Islands, is 6h.

What is the month with the highest UV index in Spot Bay?

The months with the highest UV index in Spot Bay, Cayman Islands, are February through December, with an average maximum UV index of 7.

What is the UV index reading in December in Spot Bay?

In Spot Bay, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.

Average temperature in December
Spot Bay, Cayman Islands

Average temperature in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average pressure in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average wind speed in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average humidity in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average rainfall in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average rainfall days in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average daylight in December / Average sunshine in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average sunshine days in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average UV index in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average cloud cover in December - Spot Bay, 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
Spot Bay, Cayman Islands

Average visibility in December - Spot Bay, 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).

Spot Bay, Cayman Islands

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