Cork pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Cork is moderate; mugwort is moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort increasing.
7-Day Trend
Over the next week mugwort will decrease; cypress, grass, and willow will remain stable.
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Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| 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) | Moderate | 27/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| 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 | 67/100 |
Local Environmental Conditions
Cork's parks and the Lee River corridor feature oak, ash, and birch as the main tree pollen sources, with exposure varying between green areas and the more built-up city centre. Surrounding Cork county farmland and the Atlantic-facing coastline contribute substantial tree and grass pollen, while the very wet oceanic climate provides frequent rainfall interruptions to exposure throughout the season.
Cork sits at the mouth of the River Lee amid Ireland's mild southern climate, giving it a long, damp pollen season, with alder and hazel opening the bloom in February, a lengthy May-to-July grass peak typical of the region, and mugwort and nettle along the riverbanks and waste ground sustaining a gentle presence into early autumn.
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Resource Hub
Pollen forecast neighborhoods 7 neighborhoods
Sports venues in Cork 2 sports venues
Local parkruns 6 parkruns
Frequently Asked Questions About Pollen in Cork
Is pollen high in Cork right now?
On 20 September 2026, overall pollen levels in Cork are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Cork tomorrow?
On 21 September 2026, pollen conditions in Cork will be different from today, with artemisia increasing
Is pollen expected to decrease in Cork this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Cork?
On 20 September 2026, Artemisia is the dominant pollen source in Cork. cypress, grass, and willow are not currently active.
When is pollen season in Cork?
How often is the Cork pollen forecast updated?
The Cork pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Cork 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 Cork 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 Cork, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
