Hassans Walls pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Hassans Walls is high; eucalyptus is high; acacia and cypress are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains high, acacia no longer expected, cypress no longer expected.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will increase; grass will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 13/100 |
| Cypress (Cupressaceae) | Low | 16/100 |
| Eucalyptus (Myrtaceae) | High | 70/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | None | 0/100 | |
| Eucalyptus (Myrtaceae) | High | 63/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
This area, close to this spot, has river oak grows along the bank here, releasing fine wind-borne pollen typical of casuarina species. A mix of eucalypt and wattle, wattle in particular a notorious trigger for hay fever across southern Australia, within easy reach. The broader area tends to mirror this pattern, with only minor local variation.
The waterside river oak is consistently first to release pollen each year, climbing steadily from mid-winter into September. Eucalypt and wattle in the nearby woodland follow through late winter and early spring, reaching its high point through August and into October. Grass pollen climbs toward a November peak, holding through the summer months before tapering off by late February.
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Pollen forecast neighborhoods 3 neighborhoods
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Hassans Walls right now?
On 20 September 2026, overall pollen levels in Hassans Walls are high. Myrtle is the main contributor to airborne pollen, while cypress and acacia remain at lower levels
Will pollen levels change in Hassans Walls tomorrow?
On 21 September 2026, pollen conditions in Hassans Walls will be different from today, with myrtle at high levels
Is pollen expected to decrease in Hassans Walls this week?
According to the five-day outlook, cypress, myrtle, and acacia pollen levels will increase later in the week.
Which pollen types are currently active in Hassans Walls?
On 20 September 2026, Myrtle is the dominant pollen source in Hassans Walls. cypress and acacia are also present but at lower levels. grass are not currently active.
When is pollen season in Hassans Walls?
How often is the Hassans Walls pollen forecast updated?
The Hassans Walls pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hassans Walls 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 Hassans Walls 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 Hassans Walls, 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).
