Pollen Count & Forecast for Welwyn Garden City, East Hertfordshire

East Hertfordshire, England
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About Pollen in Welwyn Garden City

Welwyn Garden City experiences peak spring tree pollen (March-May): Birch from Parkway’s urban trees; Oak from Sherrardspark Wood and wider parkland. Summer (May-July) sees dominant grass pollen originating from local meadows, Campus West green spaces, and River Lea corridors.

WGC’s structured green spaces and tree-lined avenues concentrate airborne allergens; local geography aids widespread distribution. Late season (Sept-Nov) mould spores proliferate from damp leaf litter and decaying vegetation within local woodlands and shaded park areas.

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Grass

Tree

Weed

What Pollen Levels Mean

LOW Symptoms are unlikely
MEDIUM Moderate risk of symptoms
HIGH Widespread symptoms likely
VERY HIGH Expect significant symptoms
EXTREME Extremely high symptom likelihood & severity