Diadema pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Diadema 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.

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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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Diadema forms part of the São Paulo southern metropolitan industrial belt, where eucalyptus, native Atlantic Forest remnants, and introduced urban trees are the main pollen sources. The tropical highland climate produces a more defined pollen season, with the dry season concentrating pollen dispersal and the wet summer months bringing frequent rainfall interruptions throughout this densely settled São Paulo southern metropolitan industrial city.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    8/100

  • 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

    1/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

Air quality in Diadema

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Frequently Asked Questions

Is pollen high in Diadema right now?

On 9 August 2026, overall pollen levels in Diadema are low. Cypress is the main contributor to airborne pollen

Will pollen levels change in Diadema tomorrow?

On 10 August 2026, pollen conditions in Diadema will be similar to today, with cypress at low levels

Is pollen expected to decrease in Diadema this week?

According to the five-day outlook, cypress and willow pollen levels will increase later in the week.

Which pollen types are currently active in Diadema?

On 9 August 2026, Cypress is the dominant pollen source in Diadema. willow are not currently active.

When is pollen season in Diadema?
The dry season brings Diadema's heaviest pollen exposure, led by native Atlantic Forest remnants and introduced urban trees pollen, before the wet season restores more frequent rainfall interruptions.
How often is the Diadema pollen forecast updated?

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

Does pollen in Diadema 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 Diadema 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 Diadema, 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 Diadema.

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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.