ISSUED AT: 01:13 PM

Date: Friday 31st of July 2026

Definition Guide:

Term	Amount of Rain	Type of day
Scanty Rainfall	Less than 1 mm	Relatively dry day
Moderate Rainfall	1-10 mm	Relatively wet day
Heavy Rainfall	10-50 mm	Wet day
Very Heavy Rainfall	Greater than 50 mm	Excessively wet day

Agro-meteorological Forecast for Farmers and Livestock Producers of Trinidad and Tobago for the First 15-Day Period (1^st to 15^th) of August 2026

 

Agro-meteorological Forecast for the 15-Day period of August (1^st to 15^th) 2026

Date	Weather			Temperature	Heat Index ‘Feels Like’	Day Moisture (Relative Humidity)	Wind
1	30% chance of rainfall	1-3 mm of rainfall is possible	Patchy   cloudiness, hazy, a shower or two	Very warm Max/Min Temperatures 33°C/25°C	Feels like 38°C-40°C	55-60%	Southeast 8-20 km/h Gust 30 km/h
2	60% chance of rainfall	4-12 mm of rainfall is possible	Partly cloudy, hazy, brief showers	Very warm Max/Min Temperatures 31°C/23°C	Feels like 36°C-40°C	67-75%	East 8-20 km/h Gust 30 km/h
3	40% chance of rainfall	1-3 mm of rainfall is possible	Partly cloudy, hazy, brief showers	Warm Max/Min Temperatures 32.5°C/24°C	Feels like 37°C-42°C	64-73%	Southeast 8-20 km/h Gust 30 km/h
4	50% chance of rainfall	1-7 mm of rainfall is possible	Partly cloudy, hazy, brief showers	Warm Max/Min Temperatures 32.5°C/23°C	Feels like 37°C-42°C	57-74%	East 20-30 km/h Gust 50 km/h
5	50% chance of rainfall	1-7 mm of rainfall is possible	Partly cloudy, hazy, brief showers	Warm Max/Min Temperatures 32°C/24°C	Feels like 35°C-40°C	59-72%	East 20-30 km/h Gust 50 km/h
6	70% chance of rainfall	12- 24 mm of rainfall is possible	Partly cloudy to cloudy, scattered showers, isolated thundershowers	Warm Max/Min Temperatures 31°C/24°C	Feels like 35°C-38°C	75-80%	East 8-20 km/h Gust 30 km/h
7	70% chance of rainfall	10-20 mm of rainfall mostly south Trinidad is possible	Partly cloudy to cloudy,  showers and Thundershowers	Warm Max/Min Temperatures 31°C/25°C	Feels like 35°C-38°C	74-86%	East 8-20 km/h Gust 30 km/h
8	70% chance of rainfall	10-26 mm of rainfall mostly Tobago is possible	Partly cloudy to cloudy,  showers and Thundershowers	Warm Max/Min Temperatures 30°C/25°C	Feels like 35°C-38°C	75-81%	East 8-20 km/h Gust 30 km/h
9	60% chance of rainfall	4-10 mm of rainfall is possible	Partly cloudy to cloudy, few showers	Warm Max/Min Temperatures 32°C/24°C	Feels like 35°C-38°C	57-69%	East 11-30 km/h Gust 50 km/h
10	30% chance of rainfall	1-3 mm of rainfall is possible	Patchy   cloudiness, hazy, a shower or two	Warm Max/Min Temperatures 33°C/25°C	Feels like 38°C-45°C	63-71%	East 11-30 km/h Gust 50 km/h
11	50% chance of rainfall	1-7 mm of rainfall is possible	Partly cloudy to cloudy, few showers	Warm Max/Min Temperatures 32°C/25°C	Feels like 38°C-40°C	69-81%	East 11-30 km/h Gust 50 km/h
12	60% chance of rainfall	2-8 mm of rainfall is possible	Partly cloudy to cloudy, few showers,	Warm Max/Min Temperatures 32°C/24°C	Feels like 37°C-40°C	64-74%	East 11-30 km/h Gust 50 km/h
13	40% chance of rainfall	1-7 mm of rainfall is possible	Partly cloudy, few showers	Warm Max/Min Temperatures 32°C/24°C	Feels like 36°C-40°C	59-68%	East 11-30 km/h Gust 50 km/h
14	40% chance of rainfall	1-5 mm of rainfall is possible	Partly cloudy, few showers	Warm Max/Min Temperatures 32.5°C/23°C	Feels like 38°C-40°C	59-68%	East 11-30 km/h Gust 50 km/h
15	40% chance of rainfall	1-5 mm of rainfall is possible	Partly cloudy, few showers	Warm Max/Min Temperatures 32.5°C/23°C	Feels like 38°C-42°C	59-68%	East 11-30 km/h Gust 50 km/h

Weather Outlook for the 15-Day period of August (1^st to 15^th) 2026

Farmlands across central and southwest Tobago, southern and eastern Trinidad can expect beneficial rainfall due to increased cloudiness and moisture associated with the ITCZ and the passage of at least one tropical wave across Trinidad and Tobago. No tropical cyclones are expected to affect Trinidad and Tobago during the next 7 days to 7^th August 2026.

Rainfall

Wet days (≥ 10 mm) are forecast on 2^nd and 6^th – 9^th August 2026. 

From 1^st to 15^th August 2026 in Trinidad, near normal rainfall is likely (moderate chance, 60-70% probability). The highest rainfall totals forecast in Trinidad (100 mm) favour northeastern, southeastern, southwestern and northwestern and Trinidad: Sangre Grande, Moruga, Icacos, South Oropouche, Port of Spain and Diego Martin, while other areas will receive lesser amounts. see figure 3. 

From 1^st to 15^th August 2026, Tobago is expected to receive near-normal rainfall especially in southwest areas. There is a high probability of 70% that Tobago may receive 100 mm of rainfall while other areas will receive lesser amounts. see figure 4. 

Temperatures 

From 1^st to 15^th August 2026, generally warm, especially at night, with a low to moderate risk (below 60% probability) of heat-related hazards across most farmlands. Expect near-normal daily maximum temperatures around 33.0°C; however, above-normal nighttime minimum temperatures of 25°C are expected in Trinidad. No hot days ( ≥ 34°C) are expected. However, when factoring in humidity on the warmest days, daytime conditions would feel like 35°C to 45°C. 

Winds 

From 1^st to 15^th August 2026, expect winds easterly at near normal wind speeds of 10km/h to 20km/h. During periods of low wind speed, solar heating may result in very warm temperatures. However, gusts 50 km/or higher are likely near thunderstorms. Average evaporation rates of 2 mm to 8 mm per day are expected in Trinidad and up to 9.0 mm per day in Tobago , with higher water loss expected during very warm and breezy days. 

 

Moisture levels 

Daytime relative humidity levels are expected from the upper-50s to mid-80s in terms of percentage leading to occasional very humid conditions in western areas, particularly in the afternoons and evenings.

Trinidad Rainfall Forecast for the 15-Day period of August (1^st to 15^th) 2026

 

Figure 3. Rainfall map of Trinidad showing expected mean rainfall totals for districts across Trinidad during the 15-day period (1^st to 15^th August 2026) and percentage probability of occurrence.

Eastern and North-Eastern areas:Moderate chance (70%) of mean daily rainfall up to 6.7 mm.

South-Eastern areas: Moderate chance (70%) of mean daily rainfall up to 6.7 mm.

Southern areas: Moderate chance (70%) of mean daily rainfall up to 5.9 mm.

South-Western areas: Moderate chance (70%) of mean daily rainfall up to 5.8 mm.

Central, West-Central, and inland areas:Moderate chance (60%) of mean daily rainfall up to 3.8 mm.

Northern, North-Western areas: Moderate chance (60%) of mean daily rainfall up to 4.4 mm. 

 

Tobago Rainfall Forecast for the 15-Day period of August (1^st to15^th) 2026

Figure 4.   Rainfall map of Tobago showing expected mean rainfall totals for districts across Tobago during the 15-day period (1^st to 15^th August 2026) and percentage probability of occurrence.

 

North-Eastern areas: Moderate chance (60%) of mean daily rainfall up to 4.7 mm.

South-Western areas: Moderate chance (70%) of mean daily rainfall up to 6.3 mm.

 

Seasonal Precipitation forecast for August-September-October 2026 

During August to October mostly near normal rainfall totals are expected over Trinidad and below normal rainfall totals are expected in Tobago (see Rainfall and Temperature Outlook). A Drought Warning in southwestern Tobago for August may continue through October (see Dryness/Drought Monitor and Outlook).