Aberystwyth pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Aberystwyth is medium; mugwort is medium; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - mugwort declining. Over the following five days cypress, 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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Tree pollen in Aberystwyth comes mostly from oak and ash, with parks and mature gardens standing in contrast to the more built-up centre. Local farmland and hedgerows nearby add meaningful grass pollen through late spring and summer, especially under moist Atlantic fronts. Locals with allergies tend to plan around two peaks a year rather than one long stretch.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    6/100

  • Grass (Poaceae):

    Low

    6/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    33/100

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):

    Low

    25/100

Air quality in Aberystwyth

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Frequently Asked Questions

Is pollen high in Aberystwyth right now?

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

Will pollen levels change in Aberystwyth tomorrow?

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

Is pollen expected to decrease in Aberystwyth this week?

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

Which pollen types are currently active in Aberystwyth?

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

When is pollen season in Aberystwyth?
If you're wondering when hay fever kicks off in Aberystwyth, it's mostly down to oak and ash. You'll usually see oak pollen from around April through May, and ash keeps things going from March right through to May. Don't forget grass, either — it runs May to September and usually causes the most trouble in June and July. Good to know if you're planning anything outdoors that time of year.
How often is the Aberystwyth pollen forecast updated?

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

Does pollen in Aberystwyth 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 Aberystwyth 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 Aberystwyth, 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 Aberystwyth.

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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.