Pollen Count & Forecast for Wigan

Birch and Oak pollen dominate spring (March-May); prolific in Wigan’s Mesnes Park and Haigh Woodland. Alder pollen peaks late February-March; common along Leeds & Liverpool Canal banks. Grass pollen follows (May-July); widespread across local greenspaces including Pennington Flash Nature Reserve and agricultural fringes.

Wigan’s urban topography, notably the Douglas Valley, can concentrate airborne pollen; damp, humid conditions amplify mould spore counts. Mould spores (August-October) peak due to decomposing foliage in Haigh Woodland and urban damp zones.