Pollen Count & Forecast for Chester, Cheshire West and Chester

Chester experiences peak tree pollen March-May; Birch and Oak are dominant, sourced from Grosvenor Park and the city’s mature urban canopy. Grass pollen then prevails May-July, originating from extensive Chester Meadows and River Dee banks. The city’s walled geography can locally concentrate airborne allergens; rural Cheshire contributes additional pollen drift. Late-season mould spores escalate August-October, exacerbated by damp River Dee environments and decaying leaf litter.