Weather Forecast
ISSUED AT 06:21 AM
Date Thursday 21st of May 2026
Meteorologist Kiran Sedoo
FOR THE PERIOD: Today until Midnight
TRINIDAD,TOBAGO & THE Southern WINDWARDS
Mostly sunny, hazy and breezy conditions are expected despite isolated afternoon showers occurring. Tonight will be fair but hazy. NOTE: There is a mild to moderate concentration of Saharan dust present in the atmosphere. Persons who are sensitive to this change in air quality are advised to take the necessary precautions.
THE REMAINDER OF THE LESSER ANTILLES
Partly cloudy and breezy conditions are expected with occasional light or moderate showers occurring. Tonight will be fair at first with a few showers likely after midnight.
Temperature
Piarco Crown Point
LAST NIGHT MIN. TEMP. 25.2°C 26.8°C
FORECAST MAX. TEMP. 33°C 32°C
Sunrise & Sunset
Sunrise
05:43 am
Sunset
06:22 pm
Tides
Tides ISSUED at 04:25 PM Wednesday, 20th of May 2026 and valid for 04:25 PM Thursday, 21st of May 2026
Port of Spain
High
07:10 am
08:41 pm
Low
01:09 am
02:03 pm
Scarborough
High
06:50 am
08:29 pm
Low
12:47 am
01:52 pm
Marine Conditions
Seas: Moderate
Waves:
OPEN WATERS 2.0m
SHELTERED AREAS Below 1.0m
Rainfall
24-Hours Rainfall (mm) ending 2pm Wednesday, 20th of May 2026
Piarco
TRACE
Crown Point
TRACE
Monthly Cumulative (2pm - 2pm)
Piarco
17.3 mm
Crown Point
1.2 mm
Extended Outlook
Fri 22nd May 2026
Partly cloudy and breezy at times with scattered showers and the low to medium chance of the isolated shower becoming heavy, favoring Trinidad. Mostly settled night despite the lingering shower.
Piarco
32°C
24°C
Crown Point
32°C
25°C
Sat 23rd May 2026
Generally fair and breezy conditions despite brief partly cloudy spells with isolated showers favoring Southern areas of Trinidad. Mostly fair evening and night despite the isolated shower.
Piarco
33°C
24°C
Crown Point
32°C
25°C
Tourism Weather Forecast
ISSUED AT 05:40 PM
Valid Period Tonight, through Friday 22nd May, 2026
Meteorologist Trevis Gardiner
Tonight

Mostly fair with a light breeze, apart from the odd shower. 

Temperature: Low: 26°C
Humidity: 70 - 85
Additional Info: 24-Hour Rainfall Ending 2 PM on 20/05/26: Trace Monthly Cumulative: 1.2 mm
Tides
Thursday, May 21
Scarborough
High
06:50
08:29
Low
12:47
01:52
Plymouth
High
06:05
07:36
Low
12:04
12:58
Charlotteville
High
06:35
08:06
Low
12:34
01:28
Friday, May 22
Scarborough
High
08:02
09:38
Low
02:03
03:00
Plymouth
High
07:09
08:34
Low
01:09
01:55
Charlotteville
High
07:39
09:04
Low
01:39
02:25
Weather Outlook
Thursday 21st May, 2026 (12 - 36 HR Outlook)

Mainly sunny, slightly hazy, and times breezy, despite one or two mostly light showery spells. Night-time will be mostly fair, despite the odd shower.

Temperature
25°C - 32°C
Humidity
60 - 85%
Wind
08 - 35 km/h ENE to ESE
Seas
Moderate
Waves
In open waters: Near 2.0 m, In sheltered areas: 1.0 to 1.5 m, occasionally choppy; Swell: 1.0m – 2.0 m, Swell period: 07 - 10s
Sunrise/Sunset
05:39 AM / 06:19 PM
Heat Index
35°C
Additional Information
A mild concentration of Saharan Dust is present in the atmosphere
Friday 22nd May, 2026 (36 – 60 HR Outlook)

A few showery spells favouring early morning, will interrupt generally fair, slightly hazy, and at times breezy conditions.

Temperature
26°C - 32°C
Humidity
60 - 85%
Wind
08 - 35 km/h ENE to ESE
Seas
Moderate
Waves
In open waters: Near 2.0 m, In sheltered areas: 1.0 to 1.5 m; Swell: 1.0m – 2.0 m, Swell period: 07 - 10s
Sunrise/Sunset
05:39 AM / 06:20 PM
Heat Index
35°C
Additional Information
A mild concentrations of Saharan Dust is present in the atmosphere
Agromet Bulletin and Assessment Update

Loading Agromet data...

Dust Air Quality Index

Trinidad and Tobago Meteorological Service
Last updated: March 13, 2025 at 12:26 PM

March 2025

Sun
Mon
Tue
Wed
Thu
Fri
Sat

Select a day to view details

Click on a day with data to view detailed information

Air Quality Categories

0-54 μg/m³: Negligible
55-154 μg/m³: Moderate
155-254 μg/m³: High
255-354 μg/m³: Very High
355-424 μg/m³: Extreme
425+ μg/m³: Dangerous

About Dust

Saharan dust consists of fine particulate matter that can travel thousands of miles across the Atlantic. These particles can affect air quality and visibility, potentially causing health concerns

Learn More

PM2.5 Air Quality Index

Trinidad and Tobago Meteorological Service
Last updated: Loading...

March 2025

Sun
Mon
Tue
Wed
Thu
Fri
Sat

Select a day to view details

Click on a day with data to view detailed information

Air Quality Categories

0-54 μg/m³: Negligible
55-154 μg/m³: Moderate
155-254 μg/m³: High
255-354 μg/m³: Very High
355-424 μg/m³: Extreme
425+ μg/m³: Dangerous

About PM2.5

PM2.5 refers to fine particulate matter that is 2.5 micrometers or smaller in diameter. These particles can penetrate deep into the lungs and bloodstream, potentially causing health problems.

Learn More
Extended Range Forecast

Sub-seasonal (week 3 and week 4 ahead) rainfall predictions for Trinidad and Tobago

The interactive map provides intra-seasonal rainfall climate information for decision-making in climate sensitive communities, where sub-seasonal forecasts are particularly well suited.

The interactive map shows the latest forecast for week 3 and week 4 ahead (i.e. the 7-day Saturday-Friday target period, 15-21 days and 22-28 days after the date the forecast is issued). New forecasts are issued weekly on Fridays.

SEE INSTRUCTIONS BELOW THE MAP
Instructions
  • When navigating to a forecast, move the mouse over a bubble representing an area to get the possible rainfall total for week 3 ahead.
  • Clicking on any bubble on the forecast map will show, for week 3 and week 4 ahead, possible rainfall totals, percentage chance of wet or dry conditions and percentage change of exceeding 10mm and 25mm.

This sub-seasonal-to-seasonal forecasting product is still under development.

Terms and Definitions
Weather Terms
Partly Cloudy
Sky condition when between 3/8 and 5/8 of the sky is covered by clouds.
Mostly Cloudy
Sky condition when between 6/8 and 7/8 of the sky is covered by clouds.
Overcast
Sky condition when 8/8 of the sky is covered by clouds.
Precipitation Terms
Isolated
Probability of precipitation between 10% and 20%.
Scattered
Probability of precipitation between 30% and 50%.
Likely
Probability of precipitation between 60% and 70%.
Marine Terms
Slight Seas
Wave heights between 0.5 and 1.25 meters.
Moderate Seas
Wave heights between 1.25 and 2.5 meters.
Rough Seas
Wave heights between 2.5 and 4.0 meters.
Very Rough Seas
Wave heights between 4.0 and 6.0 meters.