Olhão pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Olhão is none Tomorrow (10 August 2026) levels are similar - grass at low levels, mugwort at low levels. Over the following five days grass and mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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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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Olhão sits on the Algarve's Ria Formosa lagoon coast, in the Faro region; olive and cypress are the leading tree pollen sources locally, and late grass pollen adds to totals from local farmland and green spaces through spring. The surrounding Faro countryside shapes how exposure varies across the built-up and open parts of the area, with noticeably calmer conditions once the main olive and cypress peak has passed.
Today - 9 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):
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 - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
6/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
9/100
Air quality in Olhão
View air qualityFrequently Asked Questions
Is pollen high in Olhão right now?
Currently, there is no significant pollen in Olhão.
Will pollen levels change in Olhão tomorrow?
On 10 August 2026, pollen conditions in Olhão will be different from today, with artemisia at low levels, grass at low levels
Is pollen expected to decrease in Olhão this week?
According to the five-day outlook, artemisia and grass pollen levels will increase later in the week.
Which pollen types are currently active in Olhão?
On 9 August 2026, there are no significant pollen types in Olhão.
When is pollen season in Olhão?
How often is the Olhão pollen forecast updated?
The Olhão pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Olhão 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 Olhão 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 Olhão, 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 Portugal?
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 Olhão.
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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.