Jette pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Jette is high; mugwort is high; grass is low. Tomorrow (10 August 2026) levels are similar - mugwort declining. Over the following five days grass will increase; mugwort will decrease. 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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Jette's parks, including the Laeken Royal Domain nearby, and the Woluwe corridor oak and linden count among the leading tree pollen sources here, with grass adding to counts from late spring. Brussels-Capital Region farmland and woodland nearby contribute further tree and grass allergens through the season.

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):

    Low

    17/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    70/100

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):

    Medium

    44/100

Air quality in Jette

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Frequently Asked Questions

Is pollen high in Jette right now?

On 9 August 2026, overall pollen levels in Jette are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Jette tomorrow?

On 10 August 2026, pollen conditions in Jette will be different from today, with artemisia continuing to decline

Is pollen expected to decrease in Jette this week?

According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Jette?

On 9 August 2026, Artemisia is the dominant pollen source in Jette. grass are also present but at lower levels. willow, hazel, and cypress are not currently active.

When is pollen season in Jette?
From an early hazel and alder start, Jette's pollen season builds to a oak and linden peak in spring before grass extends exposure into early summer; January through August covers the full window. Ragweed adds a late-season tail in areas closest to farmland and disturbed ground.
How often is the Jette pollen forecast updated?

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

Does pollen in Jette 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 Jette 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 Jette, 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 Belgium?

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 Jette.

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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.