Pollen Count & Forecast for Montevideo

Montevideo’s spring allergy season (September-November) is dominated by Cypress and Plane pollen; Arizona Cypress (Cupressus arizonica) prolific in Parque Batlle and Parque Rodó; Plane Tree (Platanus x acerifolia) widespread across central city avenues. Ash (Fraxinus) contributes significantly from residential areas. Summer (December-February) has high Grass (Poaceae) pollen levels, originating from the open spaces of Parque Prado and along the Rio de la Plata coastline.

Humid air from the Rio de la Plata keeps pollen levels heavy; coastal winds transport allergens across the flat city layout. Autumn and winter see elevated Mould (Alternaria, Cladosporium) spore counts, from damp conditions near the port and decaying organic matter in the Prado botanical gardens.