Pollen Count & Forecast for Port of Spain

Port of Spain’s dry season (January–May) is dominated by Mango and Cashew pollen; Mango (Mangifera indica) prolific in the Northern Range and Royal Botanic Gardens; Cashew (Anacardium occidentale) widespread across the city foothills. Bermuda Grass (Cynodon dactylon) is high in the Queen’s Park Savannah. The mid-dry season (March–May) sees high Yellow Poui (Handroanthus serratifolius) pollen levels, originating from the Northern Range slopes.

The Northern Range hills trap airborne particles over the city; trade winds bring Saharan dust from the east. The wet season (June–December) sees elevated Mould (Aspergillus, Penicillium) spore counts, from damp soil near the Maraval River and St. Ann’s River valleys. Rain washes pollen away but supports fungal growth in urban areas.