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Climate - Trinidad And Tobago

Temperature, rainfall, prevailing weather conditions, when to go, what to pack

United States version (°F - inches - feet). See also the metric version (°C - mm - meters)

Flag - Trinidad And Tobago

Map - Trinidad And Tobago

The islands forming the archipelago of Trinidad and Tobago, namely the two main islands of the same name plus some smaller islands (including Little Tobago), are the southernmost of the Lesser Antilles, although some doesn't consider them as part of the said Lesser Antilles, along with Barbados, given their eccentric position. Anyway, they too have a tropical climate, hot all year round, with little seasonal variation: the maximum temperatures are about 86/90 °F in the coolest period, from December to February, and a little higher in the rest of the year. September and October are the most sweltering months, January and February the least hot.
Here are the average temperatures of the capital Port of Spain.
Port of Spain average temperatures
Port of Spain J F M A M J J A S O N D
Min (°F) 68 68 69 72 73 74 73 73 74 73 72 70
Max (°F) 88 89 90 91 92 89 88 89 90 90 89 88

The main difference throughout the year is in the amount of rainfall: there is a rainy season, which runs from mid-May to December, and a relatively dry season, which runs from January to mid-May.
Rainfall is abundant: in Port of Spain, in the island of Trinidad, it's around 66 inches per year, with more than 4 inches per month from May to December, and more than 8 in it the three rainiest months, i.e. June, July and August. The driest months are February, March and April, with an average of 1.20/1.57 in of rain per month.
Here is the average precipitation.
Average precipitation Port of Spain
Port of Spain J F M A M J J A S O N D Year
Prec. (in) 2.8 1.6 1.2 1.6 4.3 9.8 9.4 9.1 7.1 6.7 7.5 5.5 66.5
Days 14 8 8 7 11 17 20 21 19 16 17 16 174

Scarborough, in the island of Tobago, receives 60 in of rain per year: even here precipitation exceeds 4 inches per month from June to December, but it exceeds 8 in only in October and November.
In the interior of both islands there are some elevations: in Trinidad they are found in the northern part, where there are two peaks reaching 3,300 feet, El Cerro del Aripo and El Tucuche, while Tobago is crossed by a chain of hills and low mountains in the interior, reaching 2,100 ft. On the slopes of both islands the climate is even rainier, especially those facing north, where rainfall reaches even 150 inches per year.
The rains occur throughout the year especially in the form of shower or thunderstorm, therefore they do not reduce too much the sunshine hours (in Port of Spain there are on average 9 hours of sunshine per day from February to April, and 7 from June to December).
Trinidad and Tobago are in theory just outside of the hurricane belt, and in fact they are seldom, if ever, affected, especially Trinidad, even more sheltered because of its southern position; however, we recall that the hurricane season in the Caribbean lasts from June to November.


For swimming, the sea is warm enough throughout the year: the water temperature goes from 79 °F in February and March, to 84 °F in September.
Sea temperature Port of Spain
Port of Spain J F M A M J J A S O N D
Sea (°F) 81 79 79 81 81 81 82 82 84 82 82 81

When to go

The best time to visit Trinidad and Tobago goes from January to April, which is by far the driest of the year. Since these islands are almost always outside the hurricanes paths, you can in theory also choose the summer, keeping in mind that it is very rainy, and even muggy. December is still rainy, but is outside the period of hurricanes, and also a little cooler.

What to pack

All year round: light clothes, of natural fabric, possibly a light sweatshirt and a light raincoat for thunderstorms, especially from June to December; a light sweater or sweatshirt for the evening from December to March.
For the reef, equipment for snorkeling, water shoes or rubber soled shoes.

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Metric version (°C)
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