Pollen Count & Forecast for Winchester, Winchester
About Pollen in Winchester
Winchester experiences peak spring pollen from Birch (March-April), prevalent in urban parks like Abbey Gardens and Oram’s Arbour, followed by Oak (April-May) from surrounding South Downs woodlands; summer sees high Grass pollen (May-July) across River Itchen floodplains and water meadows such as Winnall Moors.
The city’s valley topography can trap pollen, exacerbating levels; autumn/winter bring mould spores (September-February) from damp, decaying leaves in woodlands and riverine areas.
More info?
Get the app!
Personalised & tunable notifications, super-local hourly forecasts, pollen maps
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