Monsanto pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Monsanto is low; mugwort is low. Tomorrow (10 August 2026) levels are similar. Over the following five days 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

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Surrounded by Castelo Branco countryside and sitting on a granite hilltop in the Serra da Estrela foothills, Monsanto sees olive and oak as the leading tree pollen source, with grass and coastal scrub pollen building steadily as the season advances. The contrast between green space and dense streets shapes how residents experience the season differently across town.

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):

    Low

    2/100

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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

Air quality in Monsanto

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Frequently Asked Questions

Is pollen high in Monsanto right now?

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

Will pollen levels change in Monsanto tomorrow?

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

Is pollen expected to decrease in Monsanto this week?

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

Which pollen types are currently active in Monsanto?

On 9 August 2026, Artemisia is the dominant pollen source in Monsanto. grass, willow, hazel, and cypress are not currently active.

When is pollen season in Monsanto?
olive and oak defines the core of Monsanto's pollen season after an early alder and olive start, with grass and coastal scrub pollen stretching exposure into summer across January through August. hot, dry summer conditions cut the pollen season short here. Monsanto sits on a granite hilltop in the Serra da Estrela foothills, which shapes the tail end of the cycle.
How often is the Monsanto pollen forecast updated?

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

Does pollen in Monsanto 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 Monsanto 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 Monsanto, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Monsanto.

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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.