Castlereagh pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Castlereagh is low; eucalyptus is low. Tomorrow (31 August 2026) levels are similar - eucalyptus increasing. Over the following five days eucalyptus will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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This area, just around the area, has river oak crowds the water's edge here, a well-known contributor to local casuarina pollen counts. A stand of eucalypt with wattle through the understorey, wattle ranked among the region's sharpest allergens, just outside the immediate area. This area, just outside the immediate area, has a park whose turf grass and ornamental plane trees feed local pollen levels through spring.

Today - 30 August

  • Acacia (Acacia):

    None

    0/100

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Eucalyptus (Myrtaceae):

    Low

    17/100

  • 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 - 31 August

  • Acacia (Acacia):

    None

    0/100

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Eucalyptus (Myrtaceae):

    Moderate

    27/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

Air quality in Castlereagh

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Pollen forecast for neighborhoods and landmarks in Castlereagh

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Frequently Asked Questions

Is pollen high in Castlereagh right now?

On 30 August 2026, overall pollen levels in Castlereagh are low. Myrtle is the main contributor to airborne pollen

Will pollen levels change in Castlereagh tomorrow?

On 31 August 2026, pollen conditions in Castlereagh will be different from today, with myrtle increasing

Is pollen expected to decrease in Castlereagh this week?

According to the five-day outlook, myrtle pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Castlereagh?

On 30 August 2026, Myrtle is the dominant pollen source in Castlereagh. grass, acacia, and cypress are not currently active.

When is pollen season in Castlereagh?
The water-adjacent river oak is an early riser, arriving ahead of the rest of the season, cresting around mid-winter. Eucalypt and wattle in the nearby woodland follow through late winter and early spring, climbing steadily through late winter to a peak in August or September. Grass pollen climbs toward a November peak, and remaining a significant allergen right through summer until it eases in February.
How often is the Castlereagh pollen forecast updated?

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

Does pollen in Castlereagh 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 Castlereagh 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 Castlereagh, 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 Australia?

Brisbane Forster Melton Toowoomba Ulladulla Young

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Data provided by Airmine — Last update: 30 August 2026 at 08:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Castlereagh.

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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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.