Pollen Count & Forecast for York

York’s allergy profile commences March-April with Birch and Elm pollen, originating from urban green spaces like Rowntree Park and Museum Gardens; Oak pollen follows into May from city parklands. Grass pollen dominates May-July, primarily from Ouse/Foss riverbanks and open areas such as Knavesmire, exacerbated by dry, windy conditions.

York’s urban landscape, particularly its river valleys and built environment, can concentrate airborne allergens; prevailing south-westerly winds commonly disseminate pollen throughout the city. Late-season allergies (September-November) predominantly involve mould spores, stemming from damp leaf litter and decaying organic matter in parklands like St Nicholas Fields, intensified by autumn rainfall and high humidity.