Barren Grounds pollen forecast — Illawarra Lookout neighborhood
Pollen Today
Today (20 September) pollen in Illawarra Lookout, Barren Grounds is moderate; cypress and eucalyptus are moderate; acacia is low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains moderate, cypress declining, acacia 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 | 11/100 |
| Cypress (Cupressaceae) | Moderate | 35/100 |
| Eucalyptus (Myrtaceae) | Moderate | 48/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | Low | 16/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 31/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
River oak grows along the bank here, releasing fine wind-borne pollen typical of casuarina species; this sits in the wider area. Located just outside the immediate area, this area has tree cover made up mostly of eucalypt and wattle, wattle in particular a well-known seasonal trigger. The broader area tends to mirror this pattern, with only minor local variation.
River oak along the water gets the season underway before other species, topping out well before most other trees start releasing pollen, around July and August. Eucalypt and wattle in the nearby woodland follow through late winter and early spring, typically landing in August and September. Through spring, grass pollen climbs steadily toward its November peak, before pollen counts gradually decline through January and February.
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Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Barren Grounds right now?
On 20 September 2026, overall pollen levels in Barren Grounds are moderate. Cypress is the main contributor to airborne pollen, while myrtle and acacia remain at lower levels
Will pollen levels change in Barren Grounds tomorrow?
On 21 September 2026, pollen conditions in Barren Grounds will be different from today, with myrtle at moderate levels and cypress continuing to decline
Is pollen expected to decrease in Barren Grounds this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels will increase later in the week.
Which pollen types are currently active in Barren Grounds?
On 20 September 2026, Cypress is the dominant pollen source in Barren Grounds. myrtle and acacia are also present but at lower levels. grass are not currently active.
When is pollen season in Barren Grounds?
How often is the Barren Grounds pollen forecast updated?
The Barren Grounds pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Barren Grounds 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 Barren Grounds 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 Barren Grounds, 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).
