Dublin pollen forecast - today, tomorrow and the week ahead

Today (20 July) pollen in Dublin is low; cypress, grass, and mugwort are low. Tomorrow (21 July 2026) levels are similar - cypress remains low, mugwort remains low, grass increasing. Over the following five days cypress and mugwort 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

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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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Dublin’s pollen season runs from February through August, starting with hazel in late winter, followed by birch and ash in spring and grasses into summer — with frequent rain briefly suppressing levels, though surrounding pastureland drives sustained grass pollen loads.

Today - 20 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    5/100

  • Grass (Poaceae):

    Low

    25/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    5/100

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 - 21 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    7/100

  • Grass (Poaceae):

    Medium

    26/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    9/100

Air quality in Dublin

View air quality

Pollen forecast for neighborhoods and landmarks in Dublin

Ballsbridge Ballymun Clontarf Coolock Crumlin Drumcondra Guinness Storehouse Inchicore Phibsborough Raheny Ranelagh Rathmines Sandymount Stoneybatter Terenure Trinity College

Sports venues in Dublin

Aviva Stadium Croke Park

Frequently Asked Questions

Is pollen high in Dublin right now?

On 20 July 2026, overall pollen levels in Dublin are low. Grass is the main contributor to airborne pollen, while artemisia and cypress remain at lower levels

Will pollen levels change in Dublin tomorrow?

On 21 July 2026, pollen conditions in Dublin will be different from today, with artemisia at low levels, cypress at low levels and grass increasing

Is pollen expected to decrease in Dublin this week?

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

Which pollen types are currently active in Dublin?

On 20 July 2026, Grass is the dominant pollen source in Dublin. artemisia and cypress are also present but at lower levels. willow, alder, birch, and hazel are not currently active.

When is pollen season in Dublin?
Dublin sits on the River Liffey where it meets the Irish Sea, giving it a mild, oceanic pollen season, with alder and birch opening the bloom in February, a long grass pollen peak running from May into July across the city's parks, and mugwort and nettle along canal banks and waste ground extending the season into early autumn.
How often is the Dublin pollen forecast updated?

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

Does pollen in Dublin 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 Dublin 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 Dublin, 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 Ireland?

Cork Finglas Galway Limerick Lucan Tallaght Trim

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: 20 July 2026 at 16:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Dublin.

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.