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The climate of Dominica: when to go to Dominica

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The climate of the island of Dominica is tropical, hot and humid, with constant temperatures throughout the year ranging between 23 ° C-30 ° C in summer and 21 ° C-28 ° C in winter. The island’s climate is very rainy because of its mountainous conformation, the hot and humid climate of Dominica is sometimes tempered by trade winds of the northeast.

The dry season, and therefore the best time to visit the island, is the one that runs from February to April. The most rainy and humid period however, is the late summer and autumn, from August to December.

The average annual rainfall varies from 1,900 mm in the coastal slope of the western Caribbean Sea and 5,000 mm on the east coast, while in the mountainous areas inland of the island rainfall can reach up to 9,000 mm per year. The rainiest months are those of September, October and November.

The cyclone season, which arrive from the Atlantic Ocean, is the summer between June and October, with higher probability in the months of August and September. Dominica has about 2,630 hours of sunshine annually.

The temperature of the sea water in Dominica varies between 25 ° C in February and 28 ° C in the summer months.


The best time for a trip to Dominica is the one between the months of January and April, the months when the temperatures are milder and the rains are less intense.


ROSEAU (43 meters)
Month Average low (°C) Average high (°C) Precip. (mm) Precip. days
January 22,8 28,0 159  
February 22,8 28,0 107  
March 23,8 28,4 135  
April 23,5 29,1 122  
May 24,7 29,6 220  
June 24,5 30,1 162  
July 26,6 30,2 181  
August 26,3 30,5 243  
September 25,8 30,4 298  
October 24,2 29,0 334  
November 23,8 29,6 374  
December 22,2 28,6 240  
YEAR 24,2 29,3 2575  

Month Sea Water Temperature °C
January 26
February 25
March 26
April 26
May 27
June 27
July 28
August 28
September 28
October 28
November 27
December 27



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