December weather forecast
Cayo Santa María, Cuba

Weather in December

The first month of the winter, December, is also a moderately hot month in Cayo Santa María, Cuba, with an average temperature varying between 19°C (66.2°F) and 27°C (80.6°F).

Temperature

January, February and December, with an average high-temperature of 27°C (80.6°F), are the coldest months.

Rainfall

In Cayo Santa María, Cuba, during December, the rain falls for 7 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, in Cayo Santa María, there are 125 rainfall days, and 1280mm (50.39") of precipitation is accumulated.

Sea temperature

In Cayo Santa María, the average seawater temperature in December is 26°C (78.8°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The month with the shortest days in Cayo Santa María is December, with an average of 10h and 46min of daylight.
On the first day of the month, sunrise is at 06:39 and sunset at 17:30. On the last day of December, sunrise is at 06:55 and sunset at 17:42 CST.

Sunshine

January, February, June, September through December, with an average of 7h of sunshine, are months with the least sunshine.

UV index

With an average maximum UV index of 6, December is the month with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in December interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Cayo Santa María?

The coldest months in Cayo Santa María are January, February and December, with an average high-temperature of 27°C (80.6°F).

How many days does it rain in December in Cayo Santa María?

In Cayo Santa María, in December, during 7 rainfall days, 39mm (1.54") of precipitation is typically accumulated.

How warm is the water in December in Cayo Santa María?

In Cayo Santa María, in December, the average water temperature is 26°C (78.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Cayo Santa María?

The month with the shortest days is December, with an average of 10h and 46min of daylight.

How many hours of daylight does Cayo Santa María have in December?

In December, the average day length in Cayo Santa María, Cuba, is 10h and 46min.

When is the sunrise / sunset in December in Cayo Santa María?

On the first day of December in Cayo Santa María, sunrise is at 06:39 and sunset at 17:30. On the last day of the month, sunrise is at 06:55 and sunset at 17:42 CST.

What is the month with the least sunshine in Cayo Santa María?

The months with the least sunshine in Cayo Santa María, Cuba, are January, February, June, September through December, with an average of 7h of sunshine.

How many hours of sunshine does Cayo Santa María have in December?

In December, the average sunshine duration in Cayo Santa María is 7h.

When is the lowest UV index in Cayo Santa María?

With an average maximum UV index of 6, December is the month with the lowest UV index in Cayo Santa María.

How high is the UV index in December in Cayo Santa María?

In Cayo Santa María, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in December
Cayo Santa María, Cuba

Average temperature in December - Cayo Santa María, Cuba
  • Average high temperature in December: 27°C

The warmest months (with the highest average high temperature) are June, July, August and September (32°C).
The months with the lowest average high temperature are January, February and December (27°C).

  • Average low temperature in December: 19°C

The months with the highest average low temperature are June, July, August, September and October (23°C).
The coldest months (with the lowest average low temperature) are January and February (18°C).

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Average rainfall in December
Cayo Santa María, Cuba

Average rainfall in December - Cayo Santa María, Cuba
  • Average rainfall in December: 39mm

The wettest month (with the highest rainfall) is October (190mm).
The driest month (with the least rainfall) is February (36mm).

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Average rainfall days in December
Cayo Santa María, Cuba

Average rainfall days in December - Cayo Santa María, Cuba
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is October (16 days).
The month with the least rainy days is April (5 days).

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Average sea temperature in December
Cayo Santa María, Cuba

Average sea temperature in December - Cayo Santa María, Cuba
  • Average sea temperature in December: 26°C

The best months for swimming (with the highest average sea temperature) are June, July, August, September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February and March (25°C).

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Average daylight in December /
Average sunshine in December
Cayo Santa María, Cuba

Average daylight in December / Average sunshine in December - Cayo Santa María, Cuba
  • Average daylight in December: 10h and 46min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 46min).

  • Average sunshine in December: 7h

The months with the most sunshine are March, April, May, July and August (Average sunshine: 8h).
The months with the least sunshine are January, February, June, September, October, November and December (Average sunshine: 7).

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Average UV index in December
Cayo Santa María, Cuba

Average UV index in December - Cayo Santa María, Cuba
  • Average UV index in December: 6

The months with the highest UV index are April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).

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