Merthyr Tudful pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Merthyr Tudful is low; cypress and grass are low. Tomorrow (17 July 2026) levels are similar. Over the following five days cypress will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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

Use our Strava plugin to check your own exposure.

How to connect?

Merthyr Tudful's parks and green spaces feature oak and ash as the main tree pollen sources, with exposure varying between these greener areas and the more built-up town centre. Grass pollen from surrounding Merthyr Tydfil fields is significant through the summer months, carried in by the area's changeable Atlantic weather. Locals with allergies tend to plan around two peaks a year rather than one long stretch.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    6/100

  • Grass (Poaceae):

    Low

    10/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

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 - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    7/100

  • Grass (Poaceae):

    Low

    11/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Merthyr Tudful

View air quality

Frequently Asked Questions

Is pollen high in Merthyr Tudful right now?

On 16 July 2026, overall pollen levels in Merthyr Tudful are low. Cypress is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Merthyr Tudful tomorrow?

On 17 July 2026, pollen conditions in Merthyr Tudful will be similar to today, with cypress at low levels, grass at low levels

Is pollen expected to decrease in Merthyr Tudful this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while cypress and artemisia pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Merthyr Tudful?

On 16 July 2026, Cypress is the dominant pollen source in Merthyr Tudful. grass are also present but at lower levels. hazel, willow, alder, artemisia, and birch are not currently active.

When is pollen season in Merthyr Tudful?
Want to know what triggers spring allergies in Merthyr Tudful? Start with oak, then ash. Oak gets going around April and tapers off by May, before ash takes over, usually March to May. Grass pollen then stretches from May into September, with the worst of it typically landing in June and July. Worth keeping an eye on the forecast if you're sensitive.
How often is the Merthyr Tudful pollen forecast updated?

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

Does pollen in Merthyr Tudful 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 Merthyr Tudful 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 Merthyr Tudful, 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?

Birmingham Bristol Glasgow Leeds Liverpool London Manchester Portsmouth Sheffield Southampton

Check pollen in other popular cities:

Rio de Janeiro Copenhagen Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Merthyr Tudful.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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