Guarulhos pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Guarulhos is low; cypress is low. Tomorrow (10 August 2026) levels are similar. Over the following five days cypress will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Guarulhos' urban green spaces, anchored by Parque Estadual da Cantareira fringe and the Baquirivu-Guaçu River corridor, feature eucalyptus, pine, and native Atlantic Forest species as the main tree pollen sources, with exposure varying between these green areas and the densely built metropolitan centre. Surrounding São Paulo metropolitan woodland and farmland contribute substantial grass and tree pollen, with the tropical climate supporting year-round pollen production.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
10/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
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):
Low
2/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
None
0/100
Air quality in Guarulhos
View air qualityFrequently Asked Questions
Is pollen high in Guarulhos right now?
On 9 August 2026, overall pollen levels in Guarulhos are low. Cypress is the main contributor to airborne pollen
Will pollen levels change in Guarulhos tomorrow?
On 10 August 2026, pollen conditions in Guarulhos will be similar to today, with cypress at low levels
Is pollen expected to decrease in Guarulhos this week?
According to the five-day outlook, willow and cypress pollen levels will increase later in the week.
Which pollen types are currently active in Guarulhos?
On 9 August 2026, Cypress is the dominant pollen source in Guarulhos. willow are not currently active.
When is pollen season in Guarulhos?
How often is the Guarulhos pollen forecast updated?
The Guarulhos pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Guarulhos 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 Guarulhos 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 Guarulhos, 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 Brazil?
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 Guarulhos.
Get the full experience in the Airmine app.
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.