Walton upon Thames pollen forecast - today, tomorrow and the week ahead

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

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Walton upon Thames's parks and green spaces feature oak and plane as the main tree pollen sources, with exposure varying between these greener areas and the more built-up town centre. Grass pollen from surrounding Surrey fields is significant through the summer months, carried in by light prevailing breezes. This mix of urban and rural influence gives Walton upon Thames a fairly typical pollen pattern for the wider region.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    24/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    70/100

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):

    High

    53/100

Air quality in Walton upon Thames

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Frequently Asked Questions

Is pollen high in Walton upon Thames right now?

On 9 August 2026, overall pollen levels in Walton upon Thames are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Walton upon Thames tomorrow?

On 10 August 2026, pollen conditions in Walton upon Thames will be different from today, with artemisia at high levels

Is pollen expected to decrease in Walton upon Thames 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 Walton upon Thames?

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

When is pollen season in Walton upon Thames?
So here's the rundown for Walton upon Thames: oak pollen shows up first, then plane takes over. Grass pollen then stretches from May into September, with the worst of it typically landing in June and July. Oak gets going around April and tapers off by May, while plane follows on from April to June. Worth keeping an eye on the forecast if you're sensitive.
How often is the Walton upon Thames pollen forecast updated?

The Walton upon Thames pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Walton upon Thames 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 Walton upon Thames 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 Walton upon Thames, 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?

Check pollen in other popular cities:

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 Walton upon Thames.

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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.