Pollen Level
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Air Quality
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Pollen Level
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Air Quality
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Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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Winchester's pollen season runs from late March through September, with three main waves of different pollen types. Wet springs followed by warm summers create ideal conditions for high pollen counts across Winchester, England.
Right now: March marks the start of tree pollen season in Winchester. Alder and hazel are the first triggers.
Spring
Mar – May
Tree pollen from birch, oak, and ash. Birch is the most common trigger.
Summer
May – Jul
Grass pollen peaks — the most common UK allergen, affecting 95% of hay fever sufferers.
Late Summer
Jul – Sep
Weed pollen including nettle and dock. Mould spores increase in damp weather.
Conditions vary across Winchester — coastal areas tend to have lower counts than inland spots. PollenTracker combines multiple data sources for accurate local readings, updated throughout the day.
Open another nearby forecast without going back to the map.
Pollen Level
Medium
50 grains/m³ · Tree
~50 grains/m³
~5 grains/m³
~5 grains/m³
Weather
11°C
Cloudy · 87% humidity · 26 km/h wind
Air Quality
AQI 4
Moderate
Hourly pollen risk is estimated from weather trends when no live hourly pollen feed is available.
YES
Overall conditions look manageable, but Tree pollen is moderate and it's breezy. Most people can head out comfortably with light precautions.
Best hours: 11:00-13:00