Pollen Count & Forecast for Lancaster

Birch pollen peaks March-April, highly concentrated in Williamson Park and Lancaster University grounds; Oak pollen follows into May, prominent across urban woodland fringes; Grass pollen dominates June-July, sourced from River Lune floodplains, canal towpaths, and adjacent agricultural fields.

Lancaster’s valley topography and Morecambe Bay proximity can concentrate pollen locally; autumnal mould spores increase September-November, driven by damp leaf litter decomposition in parks and shaded urban spaces.