Summary:

Summary of Expected Weather: Low to moderate rainfall amounts are expected on twelve of the fifteen days. A mixture of wet (rainfall amounts greater than 10.0 mm), relatively wet (rainfall amounts ranging between 1.0 mm to 10.0 mm ) and relatively dry (rainfall amounts 1.0 mm or less) days are expected for the 15-day period 21st to 5th of September/October 2021. Five wet days with rainfall amounts greater than 10.0 mm are expected on the 24th, 30th, 1st, 4th and 5th mostly in northwestern, northeastern, eastern, southwestern and central parts of Trinidad and most of Tobago. However, seven relatively wet days with rainfall amounts of 1.0 mm to 7.0 mm are expected on the 25th, 26th, 27th, 28th, 29th, 2nd and 3rd; and three relatively dry days with rainfall amounts of 1.0 mm or less are expected on the 21st, 22nd and 23rd .   Trinidad: Partly cloudy to cloudy spells are expected on the 24th, 30th, 1st, 4th and 5th, which will likely bring light to occasionally moderate/heavy rainfall across farmlands in the northwestern, northeastern, eastern, southwestern and central areas of Trinidad. Daily rainfall totals are forecast to be between 10.0 mm and 20.0 mm across different farmlands, with fifteen-day rainfall totals ranging between 40.0 mm and 70.0 mm. The heaviest and most long-lasting rains are expected over farmlands in the northwestern areas of Chaguaramas, northeastern areas of Sangre Grande, Fishing Pond, Plum Mitan and Vega De Oropouche; southwestern areas of Point Fortin, La Brea and Penal and central areas of Claxton Bay, Couva, Felicity and Charlieville. On the 25th, 26th, 27th, 28th, 29th, 2nd and 3rd, expect partly cloudy conditions with light to moderate showers with daily rainfall amounts ranging between 1.0 mm to 7.0 mm, while on the 21st, 22nd and 23rd, expect patchy cloudy skies with one or two showers with daily rainfall amounts 1.0 mm or less. Tobago: Tobago will experience similar conditions as compared to Trinidad. Farmers should expect five days of light to moderate/heavy rainfall amounts particularly on the 24th, 30th, 1st, 4th and 5th. The daily rainfall totals are forecast to be between 10.0 mm and 20.0 mm across most farmlands. The fifteen-day rainfall totals will average 70.0 mm across the island. However, on the 25th, 26th, 27th, 28th, 29th, 2nd and 3rd, expect partly cloudy conditions with few light to moderate showers with daily rainfall amounts ranging between 1.0 mm to 7.0 mm, while on days 21st, 22nd and 23rd, expect patchy cloudy skies with one or two showers with daily rainfall amounts 1.0 mm or less. Temperatures & Winds: Maximum temperatures are expected to remain warm (32.0oC) to very warm (33.5oC) throughout most of the period but can reach (34.0oC) on 22nd September. However, temperatures are expected to have a real-feel or feels-like between 38.0oC to 46.0oC on most days. Mostly weak southeasterly winds of an average speed of 10 km/h are expected, with gusts ranging between 20 km/h to 54 km/h particularly in heavy showers or thundershowers. Low to moderate rainfall totals, mostly low average wind speeds, very warm to hot days and moderate to high feels-like temperatures will sustain average evapo-transpiration rates in crops ranging between 3.0 to 11.0 millimeters per day. Crop irrigation should be done when necessary, particularly on hot drier periods. Livestock should be provided with fresh cool water particularly on hot drier days to rehydrate. Moisture levels: Over the fifteen-day period across Trinidad and Tobago, moisture levels are expected to be low to moderate, with average daytime relative humidity values in the low-50s to low-60s, in terms of percentage. While during possible rainy days (24th, 30th, 1st, 4th and 5th), average daytime relative humidity values will be in the low-70s to high-80s, in terms of percentage.