Marigot Bay
Saint Lucia
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Marigot Bay, Saint Lucia

December, the first month of the winter, in Marigot Bay, is also a moderately hot month, with average temperature fluctuating between 22°C (71.6°F) and 28°C (82.4°F).

Temperature

The coldest months are January through March and December, with an average high-temperature of 28°C (82.4°F).

Rainfall

In Marigot Bay, during December, the rain falls for 18 days and regularly aggregates up to 176mm (6.9") of precipitation. In Marigot Bay, during the entire year, the rain falls for 208 days and collects up to 2377mm (93.6") of precipitation.

Sea temperature

In December, the average sea temperature is 28°C (82.4°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.

Daylight

The month with the shortest days in Marigot Bay is December, with an average of 11.3h of daylight.

Sunshine

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine.

UV index

January, November and December, with an average maximum UV index of 9, are months with the lowest UV index. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV rays for ordinary individuals.
The average daily UV index of 9 transform into the following instructions:
Take extra precautions. Protection against sun 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the coldest months in Marigot Bay?

The coldest months in Marigot Bay, Saint Lucia, are January through March and December, with an average high-temperature of 28°C (82.4°F).

What is the temperature in December in Marigot Bay?

In Marigot Bay, in December, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 22°C (71.6°F).

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

In Marigot Bay, Saint Lucia, during December, the rain falls for 18 days and regularly aggregates up to 176mm (6.9") of precipitation.

How warm is the water in December in Marigot Bay?

In December, the average sea temperature in Marigot Bay is 28°C (82.4°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 Marigot Bay?

December has the shortest days of the year in Marigot Bay, Saint Lucia, with an average of 11.3h of daylight.

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

In December, the average length of the day in Marigot Bay, Saint Lucia, is 11.3h.

What is the month with the most sunshine in Marigot Bay?

Months with the most sunshine in Marigot Bay, Saint Lucia, are January through September, November and December, with an average of 8h of sunshine.

How long on average sun shines in December in Marigot Bay?

The average sunshine in December in Marigot Bay, Saint Lucia, is 8h.

What are the months with the lowest UV index in Marigot Bay?

Months with the lowest UV index in Marigot Bay are January, November and December, with an average maximum UV index of 9.

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

In December, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from the exposure to the Sun's UV rays.
Average temperature in December - Marigot Bay, Saint Lucia
  • Average high temperature in December: 28°C

Warmest months (with the highest average high temperature) are May, June, July, August, September and October (30°C).
Months with the lowest average high temperature are January, February, March and December (28°C).

  • Average low temperature in December: 22°C

Months with the highest average low temperature are May, June, July, August and September (24°C).
Coldest months (with the lowest average low temperature) are January, February, March and December (22°C).

Average rainfall in December - Marigot Bay, Saint Lucia
  • Average rainfall in December: 176mm

The wettest month (with the highest rainfall) is October (303mm).
The driest month (with the lowest rainfall) is March (99mm).

Average rainfall days in December - Marigot Bay, Saint Lucia
  • Average rainfall days in December: 18 days

The month with the highest number of rainy days is September (24 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in December - Marigot Bay, Saint Lucia
  • Average sea temperature in December: 28°C

Best months for swimming (with the highest average sea temperature) are September and October (29°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (27°C).

Average daylight in December / Average sunshine in December - Marigot Bay, Saint Lucia
  • Average daylight in December: 11.3h

Months with the longest days are June and July (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in December: 8h

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

Average UV index in December - Marigot Bay, Saint Lucia
  • Average UV index in December: 9

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January, November and December (UV index 9).