Weather Forecast
ISSUED AT 03:24 PM
Date Monday 21st of September 2026
Meteorologist Gary Benjamin
FOR THE PERIOD: Tonight and Tomorrow
TRINIDAD,TOBAGO & THE REM.OF THE LESSER ANTILLES
Tonight: Mostly fair with brief isolated showers favouring the Leeward islands. Tomorrow: Mostly hot and sunny except for the chance for brief isolated showers. There is a low chance for an isolated moderate to heavy shower over the Leeward islands and also western Trinidad, during the afternoon. There is also a medium chance during the mid to late morning for isolated thunderstorm activity to develop near Barbados.
Temperature
Piarco Crown Point
FORECAST MIN. TEMP. 26°C 26°C
TODAY'S MAX TEMP. 33.6°C 32.5°C
FORECAST MAX. TEMP. 34°C 32°C
HEAT INDEX 37°C°C 35°C°C
Sunrise & Sunset
Sunrise
5:55 am
Sunset
6:02 pm
Tides
Tides ISSUED at 03:24 PM Monday, 21st of September 2026 and valid for 03:24 PM Tuesday, 22nd of September 2026
Port of Spain
High
12:41 am
02:17 pm
Low
07:32 am
07:38 pm
Scarborough
High
12:43 am
01:49 pm
Low
07:30 am
07:12 pm
Marine Conditions
Seas: Slight
Waves:
OPEN WATERS 1.0m
SHELTERED AREAS less than 1.0m
Rainfall
24-Hours Rainfall (mm) ending 2pm Monday, 21st of September 2026
Piarco
nil mm
Crown Point
nil mm
Monthly Cumulative (2pm - 2pm)
Piarco
82.5 mm
Crown Point
51.0 mm
Extended Outlook
Wed 23rd Sep 2026
Initially generally fair becoming partly cloudy to cloudy as the day progresses with light to moderate showers and a low to medium chance for isolated heavy showers or an isolated thunderstorm during the late morning to late afternoon.
Piarco
33°C
25°C
Crown Point
32°C
26°C
Thu 24th Sep 2026
Initially generally fair becoming partly cloudy as the day progresses with light to moderate showers and a low to medium chance for isolated heavy showers or an isolated thunderstorm during the late morning to late afternoon.
Piarco
33°C
25°C
Crown Point
32°C
26°C
Tourism Weather Forecast
ISSUED AT 02:53 PM
Valid Period Tonight, through Wednesday 23rd September, 2026.
Meteorologist C.C.Dumas
Mild Saharan Dust
Tonight

Fair but slightly hazy with a light breeze.  

Mild Saharan Dust Concentrations. Persons sensitive to these atmospheric changes should take the necessary precautions.

Temperature: Low: 26°C
Humidity: 65-85
Additional Info: Today’s Maximum Temperature:32.5°C 24-Hour Rainfall Ending 2 PM on 21/09/26: Nil Monthly Cumulative: 51.0mm
Tides
Spring tides will be in effect from Wednesday 23rd September, 2026. All marine interests are advised to exercise caution, especially at high tides.
Tuesday, September 22
Scarborough
High
12:43
01:49
Low
07:30
07:12
Plymouth
High
01:12
Low
06:27
06:33
Charlotteville
High
12:06
01:42
Low
06:57
07:03
Wednesday, September 23
Scarborough
High
01:21
02:03
Low
07:54
07:41
Plymouth
High
12:32
01:36
Low
07:05
07:15
Charlotteville
High
01:02
02:06
Low
07:35
07:45
Weather Outlook
Tuesday 22nd September. 2026 (12-36 HR Outlook)

Sunny, slightly hazy and at times breezy despite the odd brisk shower. Fair but slightly hazy night with a light breeze.

Temperature
26°C - 32°C
Humidity
65-85%
Wind
05-35 km/h ENE-ESE
Seas
Slight to Moderate
Waves
In open waters: 1.0m - 1.5m, In sheltered areas: Less than 1.0m; Swell: 0.3m-0.6m,Swell period: 07-10s
Sunrise/Sunset
05:52 AM / 05:58 PM
Heat Index
35°C
Additional Information
Mild Saharan Dust concentrations. Persons sensitive to these atmospheric changes should take the necessary precautions.
Wednesday 23rd September, 2026 (36 – 60 HR Outlook)

Mostly fair, hazy and breezy despite partly cloudy periods with scattered isolated showers from late morning. Generally fair but hazy night with a light breeze and the isolated shower.

Temperature
26°C - 32°C
Humidity
65-90%
Wind
10-35 km/h E- ESE
Seas
Slight to Moderate
Waves
In open waters: 1.0m -1.5m, In sheltered areas: Near 1.0m; Swell: 0.3m-0.8m,Swell period: 07-10s; Spring tides will be in effect.
Sunrise/Sunset
05:52 AM / 05:58 PM
Heat Index
34°C
Additional Information
Mild/Moderate Saharan Dust concentrations. Persons sensitive to these atmospheric changes should take the necessary precautions.
Agromet Bulletin and Assessment Update

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.