Greystanes pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (16 September) pollen in Greystanes is low; acacia and cypress are low.
Pollen Tomorrow
Tomorrow (17 September 2026) acacia increasing, cypress increasing, eucalyptus at low levels.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will decrease; grass will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 11/100 |
| Cypress (Cupressaceae) | Low | 10/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 35/100 | |
| Cypress (Cupressaceae) | Moderate | 34/100 | |
| Eucalyptus (Myrtaceae) | Low | 24/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
A waterway lined with river oak, a wind-pollinated species and one of the more potent allergen sources along Australian creeks and rivers; this sits close to home here. This area, close to this spot, has forest where eucalypt and wattle share the canopy and margins, wattle driving most of the seasonal pollen spike.
River oak near the water opens the pollen calendar early, arriving ahead of the rest of the season, cresting around mid-winter. Once river oak fades, eucalypt and wattle in the woods carry the season forward, usually hitting its highest point sometime between mid-August and mid-September. Grass pollen climbs toward a November peak, then holding at a high level well into January before easing off.
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Resource Hub
Sports venues in Greystanes 1 sports venue
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Greystanes right now?
On 16 September 2026, overall pollen levels in Greystanes are low. Acacia is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Greystanes tomorrow?
On 17 September 2026, pollen conditions in Greystanes will be different from today, with myrtle at low levels and acacia, cypress increasing
Is pollen expected to decrease in Greystanes this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Greystanes?
On 16 September 2026, Acacia is the dominant pollen source in Greystanes. cypress are also present but at lower levels. myrtle and grass are not currently active.
When is pollen season in Greystanes?
How often is the Greystanes pollen forecast updated?
The Greystanes pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Greystanes 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 Greystanes 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 Greystanes, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
