Weather Forecast
ISSUED AT 10:10 AM
Date Sunday 19th of July 2026
Meteorologist Tigahna Bacchus
FOR THE PERIOD: This afternoon and Tonight
TRINIDAD,TOBAGO & GRENADA
Partly cloudy with few scattered showers and a 60% (medium) chance of isolated thunderstorm activity, mainly during the early afternoon. Settled but hazy and breezy conditions as the afternoon progresses, despite few lingering isolated showers. Night will be generally fair and hazy. Note: 1) An Adverse Weather Alert (Yellow Level) is in effect! 2) Saharan dust concentrations expected to gradually increase as the day progresses. Sensitive persons should take necessary precautions.
THE REMAINDER OF THE LESSER ANTILLES
Mostly sunny, hazy and breezy despite few brief, isolated showers. Fair and hazy night.
Temperature
Piarco Crown Point
LAST NIGHT MIN. TEMP. 24.3°C 24.2°C
FORECAST MAX. TEMP. 30°C 30°C
Sunrise & Sunset
Sunrise
5:52 AM
Sunset
6:32 PM
Tides
Tides ISSUED at 04:31 PM Saturday, 18th of July 2026 and valid for 04:31 PM Sunday, 19th of July 2026
Port of Spain
High
07:32 AM
08:12 PM
Low
01:27 AM
01:43 PM
Scarborough
High
07:26 AM
07:57 PM
Low
01:18 AM
01:44 PM
Marine Conditions
Seas: Moderate.
Waves:
OPEN WATERS 2.0 m to 2.5 m.
SHELTERED AREAS Near 1.0 m; Occasionally choppy
Rainfall
24-Hours Rainfall (mm) ending 2pm Saturday, 18th of July 2026
Piarco
9.4 mm
Crown Point
TRACE
Monthly Cumulative (2pm - 2pm)
Piarco
144.5 mm
Crown Point
72.9 mm
Extended Outlook
Mon 20th Jul 2026
Partly cloudy, hazy and breezy daytime conditions are expected with a few showers likely, particularly over southern areas of Trinidad. 30% (low) chance of isolated heavy shower or thunderstorm. Night will be fair but hazy despite a brisk shower. Gusty winds and street flooding may occur near heavy showers or thunderstorms.
Piarco
32°C
25°C
Crown Point
31°C
26°C
Tue 21st Jul 2026
Sunny, hazy and breezy daytime conditions are expected despite an isolated shower. Night will be fair but hazy apart from brief showers over southern areas of Trinidad.
Piarco
32°C
25°C
Crown Point
31°C
26°C
Tourism Weather Forecast
ISSUED AT 03:01 PM
Valid Period Tonight, through Monday 20th July, 2026
Meteorologist C.C.Dumas
Increasing Atmospheric Moisture
Tonight

Mostly fair but slightly hazy with a light breeze and the isolated shower.

Temperature: Low: 25°C
Humidity: 75-90
Additional Info: Today’s Maximum Temperature: 30.6°C 24-Hour Rainfall Ending 2:00PM on 17/07/26: 0.1mm Monthly Cumulative: 72.9mm July Precipitation Percentage of Long-term Average: 45%
Tides
Seas may become agitated due to high winds and further agitated in/near heavier showers/thunderstorms. All marine interests are advised to exercise caution.
Saturday, July 18
Scarborough
High
06:30
07:13
Low
12:24
12:58
Plymouth
High
05:37
06:26
Low
12:01
12:03
Charlotteville
High
06:07
06:56
Low
12:31
12:33
Sunday, July 19
Scarborough
High
07:26
07:57
Low
01:18
01:44
Plymouth
High
06:27
07:07
Low
12:22
12:38
Charlotteville
High
06:57
07:37
Low
12:52
01:08
Monday, July 20
Scarborough
High
08:27
08:44
Low
02:17
02:30
Plymouth
High
07:20
07:51
Low
01:14
01:20
Charlotteville
High
07:50
08:21
Low
01:44
01:50
Weather Outlook
Saturday 18th July, 2026 (12 – 36 HR Outlook)

Variably, slightly hazy and breezy/windy with few scattered showers, some of which may be heavy during morning. Fair to partly cloudy but slightly hazy night despite the isolated shower and a light breeze.
Winds may gust in/near some showers.
Mild Saharan Dust concentrations. Persons sensitive to these atmospheric changes should take the necessary precautions.

Temperature
25°C - 30°C
Humidity
70-90%
Wind
10-45 km/h E- ESE
Seas
Moderate, occasionally Rough
Waves
In open waters: 1.5m -2.0m, occasionally 2.5m, In sheltered areas: 1.0m - 1.5m, occasionally choppy in/near showers; Swell:0.5m – 1.0m,Swell period: 07- 10s; All marine interests are advised to exercise caution.
Sunrise/Sunset
05:48 AM / 06:30 PM
Heat Index
33°C
Additional Information
Increased Atmospheric Moisture
Sunday 19th July, 2026 (36 – 60 HR Outlook)

Partly cloudy becoming occasionally cloudy, hazy and breezy with scattered showers, some of which may be heavy and thundery during early morning.  Conditions should settle by midday despite few lingering showers improving as evening progresses into night.

Winds may gust in/near heavier showers/thunderstorms.

Street/Flash flooding possible in heavy downpours.

Temperature
24°C - 29°C
Humidity
75-95%
Wind
05-40 km/h ENE-ESE
Seas
Moderate
Waves
In open waters: 1.5m – 2.0m, In sheltered areas: 1.0m – 1.5m, occasionally choppy in/near showers; Swell:0.6m – 1.3m,Swell period: 07- 10s; All marine interests are advised to exercise caution.
Sunrise/Sunset
05:48 AM / 06:30 PM
Heat Index
32°C
Additional Information
Increased Atmospheric Moisture
Monday 20th July, 2026 (60 – 84 HR OUTLOOK)

Fair to partly cloudy, hazy and at times breezy with the isolated shower.  Fair but hazy night with the isolated shower and a light breeze.

Winds may gust at times.
 
Temperature
26°C - 31°C
Humidity
70-90%
Wind
05-40 km/h E- ESE
Seas
Moderate
Waves
In open waters: 1.5m – 2.0m, In sheltered areas: Near 1.0m, occasionally choppy ;Swell:0.5m – 1.0m,Swell period: 07- 10s
Sunrise/Sunset
05:48 AM / 06:29 PM
Heat Index
34°C
Additional Information
Significant Saharan Dust 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.