Showers, Possible Thunderstorms Forecast to Interrupt Partly Cloudy Skies Across T&T

Weather Forecast (Next 24 Hours)

As of 9:15 AM Friday 24th May 2019, partly cloudy to mostly cloudy skies are occurring across Trinidad and Tobago with isolated to scattered showers occurring across Southwestern Trinidad. As the day progresses, additional isolated showers are forecast to develop, mainly across Trinidad, with isolated heavy showers and the chance of thunderstorms to favor Southwestern Trinidad. Showers are forecast to decrease in coverage across the island by the evening, but a few lingering showers are forecast to interrupt a partly cloudy night.

An Atlantic high-pressure system continues to dominate weather conditions across the Eastern Caribbean north of Trinidad and Tobago. However, a low-level trough, moving across parts of Guyana into Venezuela today is forecast to influence weather across Trinidad and Tobago. With mid-level instability increasing, as well as a surge in low-level moisture and favorable upper-level divergence, areas of enhanced convection (i.e. heavy showers and possible thunderstorms) may occur, favoring Southern Trinidad.

By the late morning, through the afternoon, additional isolated showers are forecast to develop, with some areas becoming heavy and possibly developing into thunderstorms, favoring Southern and Southwestern Trinidad.

Street flooding is possible across parts of Southwestern Trinidad.

These conditions are forecast to persist into the evening, gradually subsiding. However, a few lingering showers are possible into nightfall and overnight, interrupting partly cloudy to mostly cloudy conditions.

Winds are generally forecast between 20-30 KM/H by the late afternoon, with gusts up to 50 KM/H at times. Saharan dust is present in minimal concentrations across Trinidad and Tobago.


Last night’s minimum temperatures were 24°C at Piarco, Trinidad, and 26°C at Crown Point, Tobago. Tonight’s minimum temperatures are forecast to be near 25°C at Piarco, Trinidad, and 26°C at Crown Point, Tobago.

Today’s maximum high temperatures across T&T are forecast to be near 34°C at Piarco, Trinidad and 31°C at Crown Point, Tobago. Heat indices may top at 38°C at Piarco, Trinidad and 33°C at Crown Point, Tobago. The heat index is an index that combines air temperature and relative humidity, generating a “feel’s like” temperature.


Seas are forecast to remain slight in open waters through the week. Waves in open waters are forecast between 1.0 and 1.5 meters, particularly East of Trinidad and Tobago over the 3 days. In sheltered areas, seas to remain smooth, below 1.0 meters. Winds will be from the east, at times from the southeast, at 10-15 knots through the weekend.

Mild but Decreasing Concentrations of Saharan Dust Present Across Trinidad and Tobago

Saharan Dust: As of 8:00 AM Friday 24th May 2019, Saharan Dust concentrations are minimal across Trinidad and Tobago. Minimal to mild concentrations of Saharan Dust is forecast across T&T, reducing air quality to moderate levels at times and producing hazy skies across the islands. Much of the Eastern Caribbean’s air quality has returned to good levels. An additional surge in the dust is forecast near the end of May, following the passage of the tropical wave.

Tropical Update

Tropical Weather Update Overview:
— The first “official” tropical wave of the 2019 Atlantic Hurricane Season has moved off the West African Coast. Forecast to move across T&T on Tuesday 28th May 2019.
— Eyes are on the Central American Gyre for possible tropical development later next week into early June.

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