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Saint Martin climate: when to go to Sint Marteen

The island of Saint-Martin/Sint Maarten has a tropical warm and humid climate, with temperatures undergo only slight variations throughout the year, and which are moderated by constant trade winds blowing from the east and northeast.

The temperatures of Saint-Martin remain stable throughout the year. During the year, temperatures usually range between 24 ° C and 31 ° C, rarely exceed 34 ° C or fall below 20 ° C.

The island’s climate, like most of the Caribbean islands is characterized by two seasons, dry from January to April and wet between August and December, the months between June and November are also those in which it is possible that the island is achieved by the hurricanes. The average annual rainfall is 1,000-1,200 mm. The months of the rainy season match those between August and December. Saint-Martin has an average of about 142 rainy days per year.

Orient Bay, Saint Martin. Author and Copyright Marco Ramerini

Orient Bay, Saint Martin. Author Marco Ramerini

The sea water temperature varies between 28 ° C in the months between July and October and 25 ° C in the months between February and April. The sea water is therefore always good to swim in every month of the year.


The best period to visit Saint Martin is the dry season between December and April.


Month Average low (°C) Average high (°C) Precip. (mm) Precip. days
January 23,2 28,6 66,0  11,9
February 23,1 28,7 50,7  9,3
March 23,5 29,2 45,2  9,0
April 24,1 29,8 64,0  11,8
May 25,1 30,4 93,3  10,3
June 25,2 31,3 61,8  8,4
July 26,1 31,6 71,6  12,2
August 26,2 31,7 98,8  13,9
September 26,0 31,6 139,6  13,5
October 25,7 31,2 113,0  13,8
November 24,9 30,2 149,3  14,8
December 23,9 29,2 93,8  13,3
YEAR 24,8 30,3 1047,1  142
Month Sea Water Temperature °C
January 25
February 25
March 25
April 25
May 26
June 27
July 28
August 28
September 28
October 28
November 27
December 26

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