Pollen Count & Forecast for Saint Petersburg

Saint Petersburg’s spring (April-May) is dominated by Birch and Alder pollen; Birch (Betula) dense in Sosnovka Park and along the Neva River; Alder (Alnus) common in the Kirov Park woodlands. Summer (June-August) sees high Grass (Poaceae) pollen levels, originating from the Field of Mars and Primorsky Park. Late summer has Wormwood (Artemisia); these weeds are common on city outskirts and vacant industrial lots.

Humid air from the Gulf of Finland maintains high moisture; low-lying terrain prevents rapid pollen dispersal. Autumn and winter have elevated Mould (Alternaria, Cladosporium) spores, from decaying leaf litter in the Summer Garden and damp stone environments across the historic city center.