Pollen Count & Forecast for Norwich

Spring in Norwich experiences dominant tree pollen, primarily Birch and Oak, originating from mature specimens within Eaton Park, Earlham Park, and UEA grounds from March through May; summer brings high grass pollen levels, particularly from the extensive meadows bordering the River Wensum and Broadland waterways, peaking June to August.

Norwich’s urban topography can locally concentrate airborne pollen; the Broadland’s damp, low-lying areas, especially along the Wensum valley, elevate late-season fungal spore (mould) counts, peaking with autumnal leaf decomposition.