December weather forecast and climate
Mariel, Cuba

Weather in December

December, the first month of the winter, in Mariel, is also a moderately hot month, with average temperature fluctuating between 20.9°C (69.6°F) and 26°C (78.8°F).

Temperature

In December, the average high-temperature is practically the same as in November - a still moderately hot 26°C (78.8°F). In December, the average low-temperature is 20.9°C (69.6°F).

Humidity

October and December, with an average relative humidity of 79%, are most humid months.

Rainfall

In December, in Mariel, the rain falls for 6.8 days. Throughout December, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Mariel, there are 144.5 rainfall days, and 485mm (19.09") of precipitation is accumulated.

Sea temperature

In Mariel, the average water temperature is 25.8°C (78.4°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

December has the shortest days of the year in Mariel, with an average of 10.7h of daylight.

Sunshine

December has the least sunshine of the year in Mariel, with an average of 6.7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Mariel. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 most humid month in Mariel?

October and December, with an average relative humidity of 79%, are most humid months in Mariel, Cuba.

What is the average humidity in December in Mariel?

In December, the average relative humidity in Mariel, Cuba, is 79%.

How much does it rain in Mariel in December?

In Mariel, in December, during 6.8 rainfall days, 18mm (0.71") of precipitation is typically accumulated.

How warm is the water in December in Mariel?

In Mariel, Cuba, in December, the average water temperature is 25.8°C (78.4°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 Mariel?

With an average of 10.7h of daylight, December has the shortest days of the year in Mariel.

How many hours of daylight does Mariel have in December?

In December, the average length of the day in Mariel, Cuba, is 10.7h.

What is the month with the least sunshine in Mariel?

With an average of 6.7h of sunshine, December has the least sunshine of the year in Mariel, Cuba.

How many hours of sunshine does Mariel have in December?

The average sunshine in December in Mariel is 6.7h.

What is the month with the lowest UV index in Mariel?

Months with the lowest UV index in Mariel are January, February, November and December, with an average maximum UV index of 6.

How high is the UV index in December in Mariel?

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

Average temperature in December
Mariel, Cuba

Average temperature in December - Mariel, Cuba
  • Average high temperature in December: 26°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (24.9°C).

  • Average low temperature in December: 20.9°C

The month with the highest average low temperature is August (25.9°C).
The coldest month (with the lowest average low temperature) is January (19.6°C).

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Average pressure in December
Mariel, Cuba

Average pressure in December - Mariel, Cuba
  • Average pressure in December: 1017.2mbar

The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is October (1013.1mbar).

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Average wind speed in December
Mariel, Cuba

Average wind speed in December - Mariel, Cuba
  • Average wind speed in December: 13.3km/h

The windiest months (with the highest average wind speed) are January and November (14.2km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).

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Average humidity in December
Mariel, Cuba

Average humidity in December - Mariel, Cuba
  • Average humidity in December: 79%

Months with the highest relative humidity are October and December (79%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in December
Mariel, Cuba

Average rainfall in December - Mariel, Cuba
  • Average rainfall in December: 18mm

The wettest month (with the highest rainfall) is August (73mm).
The driest month (with the least rainfall) is March (8mm).

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Average rainfall days in December
Mariel, Cuba

Average rainfall days in December - Mariel, Cuba
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is March (5.8 days).

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Average sea temperature in December
Mariel, Cuba

Average sea temperature in December - Mariel, Cuba
  • Average sea temperature in December: 25.8°C

The best month for swimming (with the highest average sea temperature) is August (30.2°C).
The coldest month (with the lowest average sea temperature) is January (24.8°C).

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Average daylight in December /
Average sunshine in December
Mariel, Cuba

Average daylight in December / Average sunshine in December - Mariel, Cuba
  • Average daylight in December: 10.7h

The month with the longest days is June (Average daylight: 13.5h).
The month with the shortest days is December (Average daylight: 10.7h).

  • Average sunshine in December: 6.7h

The month with the most sunshine is May (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in December
Mariel, Cuba

Average sunshine days in December - Mariel, Cuba
  • Average sunshine days in December: 22.8 days

The month with the most sunshine days is March (24.7 days).
The month with the least sunshine days is September (9.8 days).

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Average UV index in December
Mariel, Cuba

Average UV index in December - Mariel, Cuba
  • Average UV index in December: 6

Months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 6).

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Average cloud cover in December
Mariel, Cuba

Average cloud cover in December - Mariel, Cuba
  • Average cloud cover in December: 27

The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is April (Cloud cover 19).

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Average visibility in December
Mariel, Cuba

Average visibility in December - Mariel, Cuba
  • Average visibility in December: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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