Pollen Count & Forecast for Stockholm

Stockholm’s spring allergy season (April-May) is dominated by Birch and Alder pollen; Birch (Betula) prolific in Djurgården and Hagaparken; Alder (Alnus) common along the banks of Lake Mälaren. Hazel (Corylus) contributes significantly from Tyresta National Park. Summer (June-August) sees high Grass (Poaceae) pollen levels, originating from the fields of Gärdet and archipelago islands.

Coastal winds and the rocky archipelago terrain can trap pollen, leading to localised high concentrations. Autumn sees elevated Mould (Alternaria, Cladosporium) spore counts, from decomposing leaf litter in Humlegården and damp city parklands.