Chatswood West pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (16 September) pollen in Chatswood West is moderate; cypress is moderate; acacia and eucalyptus are low.
Pollen Tomorrow
Tomorrow (17 September 2026) cypress remains moderate, acacia increasing, eucalyptus increasing.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will decrease; grass will remain stable.
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Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 11/100 |
| Cypress (Cupressaceae) | Moderate | 30/100 |
| Eucalyptus (Myrtaceae) | Low | 19/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 31/100 | |
| Cypress (Cupressaceae) | Moderate | 50/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 40/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Nearby, near this part of town, river oak grows along the bank here, releasing fine wind-borne pollen typical of casuarina species. Here, just outside the immediate area, eucalypt dominating the treeline with wattle scattered through it, both contributing to the season's pollen load. This area, within easy reach, has a park where mown turf grass and ornamental plane trees add to local grass and tree pollen.
Water-edge river oak is usually the first allergenic tree active here, starting well before the main spring rush, topping out around September. By late winter, eucalypt and wattle in the woods take over, reaching maximum intensity across the August-September window. Grass pollen climbs toward a November peak, holding through the summer months before tapering off by late February.
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Resource Hub
Sports venues in Chatswood West 1 sports venue
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Chatswood West right now?
On 16 September 2026, overall pollen levels in Chatswood West are moderate. Cypress is the main contributor to airborne pollen, while acacia and myrtle remain at lower levels
Will pollen levels change in Chatswood West tomorrow?
On 17 September 2026, pollen conditions in Chatswood West will be different from today, with cypress at moderate levels and acacia, myrtle increasing
Is pollen expected to decrease in Chatswood West 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 Chatswood West?
On 16 September 2026, Cypress is the dominant pollen source in Chatswood West. acacia and myrtle are also present but at lower levels. grass are not currently active.
When is pollen season in Chatswood West?
How often is the Chatswood West pollen forecast updated?
The Chatswood West pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Chatswood West 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 Chatswood West 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 Chatswood West, 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).
