Ribeirão Prêto pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Ribeirão Prêto is low; cypress and willow are low. Tomorrow (10 August 2026) levels are similar. Over the following five days cypress and willow 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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Ribeirão Prêto's parks feature eucalyptus, pine, and native Cerrado species as the main tree pollen sources, with exposure varying between green areas and the more built-up city centre. Surrounding São Paulo state sugarcane farmland and Cerrado remnants contribute substantial grass and crop pollen, with the dry season from May to September concentrating pollen dispersal.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    17/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    Low

    13/100

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

    13/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    Low

    6/100

Air quality in Ribeirão Prêto

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Frequently Asked Questions

Is pollen high in Ribeirão Prêto right now?

On 9 August 2026, overall pollen levels in Ribeirão Prêto are low. Cypress is the main contributor to airborne pollen, while willow remain at lower levels

Will pollen levels change in Ribeirão Prêto tomorrow?

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

Is pollen expected to decrease in Ribeirão Prêto 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 Ribeirão Prêto?

On 9 August 2026, Cypress is the dominant pollen source in Ribeirão Prêto. willow are also present but at lower levels.

When is pollen season in Ribeirão Prêto?
Ribeirão Prêto's pollen season is most pronounced during the dry season from May to September, when eucalyptus, pine, and native Cerrado species release pollen and grass exposure from surrounding sugarcane farmland increases significantly. The hot, dry season concentrates pollen production and dispersal, while the wet summer from October to March brings frequent rainfall that suppresses exposure across the city.
How often is the Ribeirão Prêto pollen forecast updated?

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

Does pollen in Ribeirão Prêto 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 Ribeirão Prêto 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 Ribeirão Prêto, 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 Ribeirão Prêto.

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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.