Lisbon pollen forecast — Oitavos Dunes – Oitavos Course neighborhood
Pollen Today
Today (20 September) pollen in Oitavos Dunes – Oitavos Course, Lisbon is low; grass and mugwort are low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass no longer expected, mugwort no longer expected.
7-Day Trend
Over the next week cypress, grass, willow, and mugwort will remain stable.
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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) | Low | 7/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 7/100 |
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) | None | 0/100 |
Local Environmental Conditions
Oitavos Dunes' Cascais Atlantic coastal setting features marram grass, stone pine, and coastal scrub as the main pollen sources across the natural dune links, with exposure varying between the exposed dune ridge fairways and the more sheltered valley holes. The Atlantic coastal position means onshore winds frequently disperse pollen, while the Sintra Mountain backdrop contributes additional tree pollen and the Atlantic climate provides regular rainfall interruptions throughout.
Pine and coastal scrub pollen peak in February and March within the natural park, a few weeks ahead of the more northerly Silver Coast courses given the milder Cascais microclimate. From May, dry summer conditions keep pollen low for the rest of the golf season.
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Frequently Asked Questions About Pollen in Lisboa
Is pollen high in Lisbon right now?
On 20 September 2026, overall pollen levels in Lisbon are low. Grass is the main contributor to airborne pollen, while artemisia remain at lower levels
Will pollen levels change in Lisbon tomorrow?
On 21 September 2026, pollen conditions in Lisbon will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Lisbon this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Lisbon?
On 20 September 2026, Grass is the dominant pollen source in Lisbon. artemisia are also present but at lower levels. cypress and willow are not currently active.
When is pollen season in Lisbon?
How often is the Lisbon pollen forecast updated?
The Lisbon pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lisbon 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 Lisbon 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 Lisbon, 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).
