Partly Cloudy Skies Across T&T. Brief, Isolated Showers Possible Later Today

Weather Forecast

The surface to low-level high pressure system, in the Eastern Atlantic, is still dominating and will continue to dominate conditions across the Eastern Caribbean throughout the week. Surface to low-level convergence, on the southwestern periphery of the ridge (high pressure), will aid in the development of occasional cloudiness.


An easterly wave, bring a mild surge in low-level moisture, will fuel isolated showers particularly after midday, mainly across Trinidad. These showers will generally remain light to moderate, with little rainfall accumulation. Low-level cloud patches are forecast to traverse the region bringing the occasional cloudiness and isolated to scattered, brief showers. These showers will interrupt mostly settled conditions across the Southern Windwards, including Trinidad and Tobago.

Very little rainfall accumulations are forecast over the next several days, with up to 5 millimeter accumulations, daily, across both Trinidad and Tobago.

Winds are forecast to be gentle, generally less than 30 KM/H, with gusts up to 40 KM/H at times.


Minimum low temperatures across Trinidad and Tobago over the next 3 days are forecast to range between 24°C-26°C. Low temperatures are likely to be lower across inland and mountainous areas. Last nights minimum temperatures were 24.2°C at Piarco, Trinidad. At Tobago, the minimum low temperature was 26.1°C at Crown Point.

Today, maximum high temperatures across Trinidad are forecast to be warm, but with expected cloud cover when maximum high temperatures occur, temperatures may remain below 32°C. Across Tobago, maximum high temperatures are forecast to near 30°C.

The maximum high heat index, or “feel’s like” temperature is forecast to generally remain near a hot 36°C during the early to mid-afternoons of Trinidad and 33°C in Tobago.


Seas are forecast to remain moderate in open waters through the week. Waves in open waters are forecast to remain up to 1.5 meters, occasionally up to 1.8 meters particularly East of Trinidad and Tobago. In sheltered areas, seas are forecast to remain smooth, below 1.0 meters.


Winds are forecast to be from the east to southeast at 10-15 knots. This is due to a mid level low pressure to the north of Puerto Rico, weakening the dominating high pressure system’s influence over the region. It will also allow for the advection of upper level moisture and weak instability from the south, creating occasional cloudiness and a few showers over the weekend. Reiterating: no significant rainfall is forecast.

No Saharan Dust In Sight

Dust concentrations are at negligible levels across the Southern and Eastern Caribbean. In fact, most places across the Eastern Caribbean are presently experiencing good air quality. Air quality is forecast to remain at good levels for the next several days. Areas in the immediate vicinity of bushfires may experience moderate air quality.

EPA Air Quality Index Risk Levels

At moderate air quality levels, unusually sensitive groups should consider reducing prolonged or heavy exertion.

Thankfully, long range dust models aren’t indicating any major intrusions of Saharan Dust over the next 10 days!

12Z March 28th 2019 NASA GEOS-5 Dust Model, no Saharan dust concentrations across the Eastern Caribbean over the next several days. Credit: Weatherbell
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