Glynneath pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Glynneath 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.

Get the full experience in the Airmine app.

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

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Fields and hedgerows just outside town push grass pollen counts up noticeably once southwesterly winds set in. On top of that, alder and oak are the two species driving most tree pollen in Glynneath, especially around parks and green corridors. Hay fever sufferers here typically notice symptoms peaking in late spring, then again during the summer grass season.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    9/100

  • Grass (Poaceae):

    Low

    9/100

  • 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

    19/100

Air quality in Glynneath

View air quality

Frequently Asked Questions

Is pollen high in Glynneath right now?

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

Will pollen levels change in Glynneath tomorrow?

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

Is pollen expected to decrease in Glynneath this week?

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

Which pollen types are currently active in Glynneath?

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

When is pollen season in Glynneath?
If you're wondering when hay fever kicks off in Glynneath, it's mostly down to birch and oak. Don't forget grass, either — it runs May to September and usually causes the most trouble in June and July. Birch pollen typically runs from March to May, and oak keeps things going from April right through to May. Not a bad idea to stock up on antihistamines before it all kicks off.
How often is the Glynneath pollen forecast updated?

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

Does pollen in Glynneath 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 Glynneath 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 Glynneath, 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: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Glynneath.

Get the full experience in the Airmine app.

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.