Pollen Count & Forecast for Swansea

Swansea’s spring allergy profile is dominated by tree pollen: Hazel and Alder from late winter; Birch and Oak peak late spring, originating from Singleton Park, Clyne Gardens, and urban street trees. Mid-spring to mid-summer sees high Grass pollen counts, prevalent from Swansea Bay’s expansive foreshore, Tawe/Clyne riverbanks, and surrounding local meadows.

Swansea’s coastal-valley topography significantly influences pollen levels; prevailing westerly winds can disperse or concentrate airborne allergens, notably in sheltered areas like the Clyne Valley. Autumn brings increased Mould spore counts, exacerbated by high local humidity, decaying vegetation in woodland areas like Kilvey Hill, and damp urban environments.