The 2021 Wet Season has been declared by the Trinidad and Tobago Meteorological Service following rainfall activity associated with the passage of a Tropical Wave on Saturday 22nd May 2021. We’ve been tracking this tropical wave over the last few days, which moved across T&T, bringing scattered moderate rainfall and gusty winds.
This marks the 8th year in a row the Trinidad and Tobago Meteorological Service has declared the Wet Season in the month of May. The Wet Season typically runs from June through December.
There is no fixed date for the beginning of the wet season. Historically, April into May are the transitional months into a wetter climate. The Trinidad and Tobago Meteorological Service will officially declare the start of the annual wet season once one of two features move across Trinidad and Tobago, triggering rainfall.
On the first occurance of a tropical wave or the ITCZ moves across T&T, producing rainfall the TTMS can declare the start of the wet season.
According to the TTMS, an overall above-normal wet season is forecast. The start of the wet season, June to August, is likely to receive less rainfall than usual. There is the concern for flooding is elevated since the period June through August is usually the wettest months of the season.
The Hurricane Season also extends from 1st June through 30th November. An overall above active Hurricane Season is also expected. Based on the TTMS’ forecast, for the area east of T&T, there will most likely be five (5) named storms from a possible range of three (3) to six (6). One (1) of these are most likely to become hurricanes in our area of interest from a range of one (1) to two (2).