The Trinidad and Tobago Meteorological Service (TTMS) has officially declared the start of the 2025 Dry Season as of Tuesday, 14 January 2025.
This marks the transition of the region’s atmosphere into a drier state, identified by intensified North Atlantic Sub-Tropical High-Pressure systems, strengthened trade-wind inversions, upper-level westerly winds, and the Inter-Tropical Convergence Zone (ITCZ) shifting southwards.
Earlier in January, weaker climatic patterns delayed the onset of the Dry Season, but recent weeks have shown fewer rainy conditions due to typical Dry Season features, such as mid-latitude frontal systems.
This period is characterised by reduced atmospheric moisture, increased stability, fewer deep clouds, warmer days, cooler nights, and surface winds predominantly from the east or north-east.
The Dry Season’s early phase, from January to March, is expected to be warmer and wetter than usual, which may alleviate vegetation stress, improve water resources, and reduce fire risks.
However, these conditions could also lead to increased mosquito breeding due to water pooling. By April to May, the season may bring Saharan dust haze, reduced air quality, and heightened risks of bush, forest, and landfill fires.
The public is urged to conserve water, avoid burning rubbish, and adopt sustainable practices, while agencies should implement measures to mitigate potential impacts.