Weather Assessment for the period 1^st to 15^th March 2026.

Typical dryness has returned with marginally warm and stable conditions. Rainfall amounts have declined despite light to moderate showers. Near normal daytime temperatures and warm nights, and fresh/strong winds have dominated the conditions across most farmlands. 

Rainfall: 

From the 1^st to 15^th March, both islands observed below normal rainfall. Piarco had a 15-day rainfall total of 15.7 mm due to three relatively wet days. At Crown Point four relatively wet days delivered a 15-day rainfall total of 11.6 mm. The rainfall totals maps for the period 1^st to 15^th March for Trinidad and Tobago are located below as figure 1 and figure 2.

Figure 1. Rainfall map of Trinidad showing measured rainfall totals for varying districts during the period 1^st to 15^th of March 2026. 

Figure 2. Rainfall map of Tobago showing measured rainfall totals for varying districts during the period 1^st to 15^th of March 2026. 

 Temperatures:

During the first half of March 2026, no hot days or spells were observed at either Piarco (maximum temperature at least 34.0 ⁰C) or Crown Point (maximum temperatures at least 33.0 ⁰C).

From 1^st to 15^th of March, Piarco observed warm days with a maximum daytime temperature 32.4 ⁰C (1^st). Nighttime temperatures were mainly near-to or above-normal as minimum temperatures ranged from 22.0 ⁰C to a warm 24.1 ⁰C (12^th) at Piarco.  Crown Point observed mainly normal daytime temperatures with a maximum daytime temperature 30.7 ⁰C (14^th) , meanwhile above-normal nighttime temperatures had minimum temperatures ranging from 22.8 ⁰C to a warm 25.6 ⁰C.

Factoring the relative humidity however these temperatures had a ‘real feel’ that was higher than the observed maximum temperature.

Agro-meteorological Forecast:

Date	Weather			Temperature	Heat ‘Real Feel’	Day Moisture (Relative Humidity)	Wind
16	70% chance of rainfall	1-6 mm of rainfall is possible	Partly to mostly cloudy, windy, isolated showers	Warm Max/Min Temperatures 31°C/22°C	Feels like 31°C-32°C	48-70%	East-northeast 20-30 km/h Gust 55 km/h
17	40% chance of rainfall	0-4 mm of rainfall is possible	Hazy, breezy to windy, isolated showers	Warm Max/Min Temperatures 31°C/22°C	Feels like 31°C-32°C	49-70%	East-northeast 20-30 km/h Gust 55 km/h
18	30% chance of rainfall	0-3 mm of rainfall is possible	Hazy, breezy to windy, brief showers	Warm Max/Min Temperatures 31°C/20°C	Feels like 31°C-33°C	53-70%	East-northeast 20-30 km/h Gust 50 km/h
19	30% chance of rainfall	1-5 mm of rainfall is possible	Partly to mostly cloudy, breezy, isolated showers	Warm Max/Min Temperatures 31°C/20°C	Feels like 31°C-31°C	42-70%	East-northeast 20-30 km/h Gust 50 km/h
20	30% chance of rainfall	1-5 mm of rainfall is possible	Hazy to partly cloudy, isolated showers	Warm Max/Min Temperatures 31°C/20°C	Feels like 31°C-32°C	47-70%	East-northeast 20-30 km/h Gust 50 km/h
21	30% chance of rainfall	0-3 mm of rainfall is possible	Hazy, breezy, brief shower	Warm Max/Min Temperatures 32°C/21°C	Feels like 33°C-33°C	46-65%	East 20-30 km/h Gust 50 km/h
22	30% chance of rainfall	0-3 mm of rainfall is possible	Hazy, breezy ,brief shower	Very Warm Max/Min Temperatures 33°C/22°C	Feels like 36°C-39°C	58-70%	East 11-30 km/h Gust 50 km/h
23	40% chance of rainfall	1-5 mm of rainfall is possible	Partly cloudy, isolated showers	Very Warm Max/Min Temperatures 33°C/23°C	Feels like 37°C-39°C	58-75%	East 11-30 km/h Gust 50 km/h
24	40% chance of rainfall	1-5 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/23°C	Feels like 35°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
25	40% chance of rainfall	1-5 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/22°C	Feels like 35°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
26	60% chance of rainfall	1-4 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/21°C	Feels like 34°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
27	60% chance of rainfall	1-4 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/21°C	Feels like 34°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
28	60% chance of rainfall	1-4 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/21°C	Feels like 34°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
29	70% chance of rainfall	1-4 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/22°C	Feels like 34°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
30	70% chance of rainfall	1-4 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/22°C	Feels like 34°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h
31	70% chance of rainfall	1-4 mm of rainfall is possible	Partly to mostly cloudy, isolated showers	Warm Max/Min Temperatures 32°C/22°C	Feels like 34°C-37°C	60-75%	East 11-30 km/h Gust 50 km/h

Trinidad Rainfall Forecast for the 15-Day period of March (16^th to 31^st) 2026.

Figure 3.  Rainfall map of Trinidad showing expected mean rainfall totals for districts across Trinidad during the 15-day period (16^th to 31^st March 2026) and percentage probability of occurrence.

Eastern and North-Eastern areas: Moderate chance (70%) of mean daily rainfall up to 3.4 mm.

South-Eastern areas: Moderate chance (70%) of mean daily rainfall up to 2.6 mm.

Southern areas: Moderate chance (70%) of mean daily rainfall up to 2.2 mm.

South-Western areas: Moderate chance (70%) of mean daily rainfall up to 2.2 mm.

Central, West-Central, and inland areas: High chance (75%) of mean daily rainfall up to 2.0 mm.

Northern, North-Western areas: High chance (75%) of mean daily rainfall up to 1.8 mm. 

Tobago Rainfall Forecast for the 15-Day period of March (16^th to 31^st)  2026.

Figure 4.    Rainfall map of Tobago showing expected mean rainfall totals for districts across Tobago during the 15-day period (16^th to 31^st March 2026) and percentage probability of occurrence.

North-Eastern areas: Moderate chance (70%) of mean daily rainfall up to 2.4 mm.

South-Western areas: Moderate chance (65%) of mean daily rainfall up to 1.8 mm.

Trinidad and Tobago:

The drying trend will continue mid-March with drier conditions forecast late-March into April as the atmosphere and oceans respond to a weakening La Niña. 

Weather conditions for most farmlands are expected to be predominantly breezy, warm, hazy and dry as usual from 16^th to 31^st March. Farmlands should prepare for a few dry days (less than 1.0 mm) even though brief light to moderate showers are expected. Significant bouts of Saharan dust/air and windy conditions are also expected during the period. From 16^th to 31^st March, there is a moderate to high (65-75%) chance of rainfall. During the first week, 16^th to 23^rd March, there is a moderate (50%) chance of below normal rainfall amounts. The second week 24^th to 31^st however, has a high (75%) chance of near-normal rainfall. During the 15-day period, 16^th to 31^st, forecast rainfall totals in Trinidad are expected to generally range between 17 mm and 68 mm, see figure 3. In Tobago, the 15-day forecast rainfall is expected to range between 21 mm and 41 mm favouring farmlands on hillsides and windward coasts, see figure 4. 

Temperatures & Winds:

A few very warm days are expected however hot days are unlikely, so there is mainly a low risk of heat hazards across Trinidad and Tobago. From 16^th to 31^st March 2026 there is a moderate (33%) chance of near normal daytime temperatures and a moderate (60%) chance of above normal nighttime temperatures. Generally daily maximum temperatures up to 32 °C are forecast. However, in north western Trinidad as high as 33 °C is possible and daytime conditions could feel as hot as 39 °C when factoring humidity on the most humid days. Generally nighttime minimum temperatures will be 21-23 °C however cooler nights of 20°C are possible in elevated/sheltered valleys such as Paramin, Upper Maracas, Lopinot, Runnemede and Main Ridge.

Wind speeds expected generally east to northeast with near to above normal strength and a high (75%) chance of occasional gusts exceeding 55 km/h near hilltops and exposed coastal areas. Average daily evaporation rates up to 7.0 mm are expected but faster water loss is expected during windy days forecast during the period. 

Moisture levels:

Low to moderate daytime relative humidity levels are expected from the low mid-40s to high-60s in terms of percentage, but may rise to a peak of 75%, leading to occasional muggy conditions in western areas, particularly in the afternoons and evenings. 

Highlighted Possible Impacts on Agriculture:

From the 16^th  to 31^st March, drier and stronger winds are expected to increase water-loss and possibly damage young plants and flowering mature plants on exposed hillsides. Despite breezy to windy conditions, moist conditions may develop in wind-sheltered areas and provide a moderate chance for fungal spread, insect pests and diseases to develop in crop beds. Mainly light to moderate showers anticipated mid-to-late March should ensure favorable conditions for agricultural activities with a low risk of street/flash flooding or land slippage on fields and access roads.

There is a lowered risk of heat-related hazards for farm workers, young livestock, newly germinated/ transplanted seedlings onto fields. Dense plumes of Saharan dust/air may significantly affect small ruminants and poultry. 

Maintain wind-breaks and irrigate crops as needed especially in the flowering stage. Ensure regular weeding to reduce competition and water stress on crops. Implement pest and disease control measures as recommended. 

Sun and Moon Positions in the Sky March (16^th to 31^st) 2026.

The sun is presently at latitude 1.5° degrees South of the Equator. The day-length or number of sunlight hours in Trinidad and Tobago from March 16^th will be 12 hours, 04 minutes increasing to 12 hours, 13 minutes on March 31^st 2026.

Moon Phases: New Moon, 18^th and First Quarter, 25^th. According to the tradition of moon phases: March 17^th is a good day for planting below-ground crops; March 18^th, 21^st - 22^nd, 25 - 27^th are good days for planting above-ground crops. Remaining days are poor planting days and useful for removing weeds, clearing land and ploughing fields.