Weather Forecast
ISSUED AT 06:13 AM
Date Friday 21st of August 2026
Meteorologist Crystol Caesar
FOR THE PERIOD: Today until Midnight
TRINIDAD,TOBAGO & GRENADA
Variably cloudy with scattered showers and the medium (60%) chance of thunderstorm activity. These conditions are expected to gradually settle during the late afternoon period despite the lingering shower.
Gusty winds and street/flash flooding are likely near heavy showers or thunderstorms.
THE REMAINDER OF THE LESSER ANTILLES
Mostly fair, slightly hazy and windy despite brisk, isolated showers. Fair night with a gentle breeze.
Temperature
Piarco Crown Point
LAST NIGHT MIN. TEMP. 25.2°C 25.1°C
FORECAST MAX. TEMP. 29°C 29°C
Sunrise & Sunset
Sunrise
05:56am
Sunset
06:22pm
Tides
Tides ISSUED at 04:17 PM Thursday, 20th of August 2026 and valid for 04:17 PM Friday, 21st of August 2026
Port of Spain
High
11:27 am
11:42 pm
Low
04:40 am
04:00 pm
Scarborough
High
12:52 pm
10:54 pm
Low
05:24 am
04:30 pm
Marine Conditions
Seas: Moderate
Waves:
OPEN WATERS 1.5m to 2.0m
SHELTERED AREAS Near 1.0m, choppy near showers
Rainfall
24-Hours Rainfall (mm) ending 2pm Thursday, 20th of August 2026
Piarco
12.3mm
Crown Point
2.7mm
Monthly Cumulative (2pm - 2pm)
Piarco
83.0mm
Crown Point
58.0mm
Extended Outlook
Sat 22nd Aug 2026
Settled conditions will be interrupted by cloudy periods with occasional showers. There is a 40% (medium) chance of isolated heavy showers/ thunderstorms. Conditions will become mostly fair by evening. Night: Fair to partly cloudy with a few showers. There is a 30% chance of isolated heavy showers near sunrise.
Piarco
32°C
24°C
Crown Point
31°C
25°C
Sun 23rd Aug 2026
Day: Variably cloudy with a few light to moderate showers. There is a 40% (medium) chance of isolated heavy showers/ thunderstorms. Night: Conditions are expected to become increasingly settled as the night progresses.
Piarco
33°C
25°C
Crown Point
32°C
26°C
Tourism Weather Forecast
ISSUED AT 02:56 PM
Valid Period Tonight, through Saturday 22nd August, 2026.
Meteorologist C.C.Dumas
Moist Atmosphere
Tonight

Fair to partly cloudy with the isolated shower.

Temperature: Low: 25°C
Humidity: 75-95
Additional Info: Today’s Maximum Temperature:31.6°C 24-Hour Rainfall Ending 2 PM on 20/08/26: 2.7mm Monthly Cumulative: 58.0mm
Tides
Seas may become agitated in/near heavier showers and/or thunderstorms.
Friday, August 21
Scarborough
High
12:52
Low
05:24
04:30
Plymouth
High
10:22
09:37
Low
03:35
02:55
Charlotteville
High
10:52
10:07
Low
04:05
03:25
Saturday, August 22
Scarborough
High
01:52
Low
06:42
06:03
Plymouth
High
12:45
Low
04:51
04:25
Charlotteville
High
01:15
Low
05:21
04:55
Weather Outlook
Friday 21st August, 2026 (12-36 HR Outlook)

Variably cloudy, slightly hazy and at times breezy with scattered showers/periods of rain. Some showers may get heavy and/or thundery during morning. Fair to partly cloudy night with the isolated shower.

Winds may gust in/near heavier showers/thunderstorms.

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

Temperature
25°C - 30°C
Humidity
75-95%
Wind
05-35 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- 09s
Sunrise/Sunset
05:53 AM / 06:18 PM
Heat Index
33°C
Additional Information
Low Level Instability
Saturday 22nd August, 2026 (36 – 60 HR Outlook)

Partly cloudy/cloudy, slightly hazy and at times breezy with few showers. Fair to partly cloudy night with the isolated shower.

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

Temperature
25°C - 31°C
Humidity
70-90%
Wind
05-35 km/h E- SE
Seas
Slight to Moderate
Waves
In open waters: 1.0m – 1.5m, In sheltered areas: Less than 1.0m; Swell:0.3m – 0.8m,Swell period: 07- 09s
Sunrise/Sunset
05:53 AM / 06:18 PM
Heat Index
33°C
Additional Information
Lingering Moisture and Instability
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.