The Trinidad and Tobago Meteorological Service (TTMS) has formally announced the commencement of the 2026 dry season, marking a significant climatic transition for the Caribbean nation. In an official statement released on January 8, the TTMS detailed the atmospheric changes indicating this seasonal shift, including the intensification of the North Atlantic Sub-Tropical High-Pressure system and the establishment of upper-level westerly winds across the region.
This meteorological transition results from complex interactions between several climatic phenomena: the equatorward migration of pressure systems, strengthened trade-wind inversion patterns, and the southward positioning of the Inter-Tropical Convergence Zone. While characterized by substantially reduced precipitation compared to wet season months, the dry season does not eliminate rainfall entirely, instead featuring different meteorological mechanisms for precipitation formation.
During the initial phase (January-March 2026), forecasts indicate above-average rainfall and warmer temperatures, potentially alleviating vegetative stress and enhancing groundwater recharge. This unexpected moisture surplus may positively impact water security while simultaneously creating favorable conditions for mosquito breeding in standing water collections. The latter portion of the season (April-May) is projected to maintain typical precipitation patterns, though with reduced groundwater replenishment capabilities.
Notably, the TTMS highlights increased probability of Saharan dust-haze events, which could significantly degrade air quality throughout the period. The meteorological authority has issued specific recommendations, urging water conservation measures and strict adherence to fire prevention protocols under the Agricultural Fires Act. Government agencies and relevant ministries have been advised to implement appropriate mitigation strategies addressing both water management and public health concerns during the five-month dry period.