Henley-in-Arden pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Henley-in-Arden is high; mugwort is high; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - mugwort declining. Over the following five days grass and mugwort will increase; cypress will remain stable. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Residents in Henley-in-Arden dealing with hay fever usually point to oak and plane as the culprits, particularly in spring near parks and gardens. Surrounding Warwickshire farmland contributes substantial grass and tree pollen, moving into town when winds blow from the the surrounding hills. Seasonal peaks tend to track the wider regional pattern, tree pollen leading in spring and grass through summer.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    12/100

  • Grass (Poaceae):

    Low

    14/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    61/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 10 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    31/100

Air quality in Henley-in-Arden

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Frequently Asked Questions

Is pollen high in Henley-in-Arden right now?

On 9 August 2026, overall pollen levels in Henley-in-Arden are high. Artemisia is the main contributor to airborne pollen, while cypress and grass remain at lower levels

Will pollen levels change in Henley-in-Arden tomorrow?

On 10 August 2026, pollen conditions in Henley-in-Arden will be different from today, with artemisia continuing to decline

Is pollen expected to decrease in Henley-in-Arden this week?

According to the five-day outlook, grass and artemisia pollen levels will increase later in the week.

Which pollen types are currently active in Henley-in-Arden?

On 9 August 2026, Artemisia is the dominant pollen source in Henley-in-Arden. cypress and grass are also present but at lower levels. hazel and willow are not currently active.

When is pollen season in Henley-in-Arden?
Ask anyone with allergies in Henley-in-Arden and they'll tell you it's oak and plane that cause the trouble. Then grass pollen takes the baton from May all the way to September, usually peaking in June and July — that's when most people really feel it. Oak tends to release pollen between April and May, before plane takes over, usually April to June. Handy to bear in mind before booking that garden party.
How often is the Henley-in-Arden pollen forecast updated?

The Henley-in-Arden pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Henley-in-Arden come from nearby or far away?

Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.

Are pollen levels in Henley-in-Arden based on measurements or forecasts?

Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.

Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Henley-in-Arden, modern forecasts combine recent measurements, weather data, and information about local vegetation.

This allows us to estimate pollen levels for today and the coming days, not just report the past.

Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.

Want to see pollen forecasts for other cities in United Kingdom?

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Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Henley-in-Arden.

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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.