Pollen Count & Forecast for Melbourne

Melbourne’s spring allergy season (September-December) is dominated by Perennial Ryegrass (Lolium perenne); pollen is high along the Yarra River and northern pastures. London Plane (Platanus x acerifolia) is widespread in the CBD and Carlton Gardens; Silver Birch (Betula pendula) is found in the Royal Botanic Gardens. Summer (December-February) has high grass counts; northerly winds carry pollen from the Victorian plains.

Northerly winds trap pollen against the Great Dividing Range; sudden changes in weather can trigger thunderstorm asthma events. Autumn and winter see elevated Mould (Alternaria, Cladosporium) counts; spores come from damp leaf litter in the Dandenong Ranges and local parklands.