Penrith pollen forecast — Werrington Downs neighborhood
Pollen Today
Today (20 September) pollen in Werrington Downs, Penrith is low; acacia, cypress, and eucalyptus are low.
Pollen Tomorrow
Tomorrow (21 September 2026) acacia no longer expected, cypress no longer expected, eucalyptus 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 | 15/100 |
| Cypress (Cupressaceae) | Low | 20/100 |
| Eucalyptus (Myrtaceae) | Low | 17/100 |
| 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) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Wattle and casuarina line the water's edge, releasing pollen that carries easily on the wind, within the neighborhood. Located in the wider area, this area has woodland dominated by plane tree and eucalypt, with eucalypt a leading regional tree-pollen allergen. Nearby, within the local area, a green space where lawn grass and ornamental plantings top up the local grass and plantain and weed count.
In Werrington Downs, temperatures climbing to 14.3°C by September likely mark the start of the main pollen release, with humidity around 64% helping keep counts airborne. Warmer conditions by December (21.8°C, 62% humidity) sustain grass pollen through the season, before rainfall of 207mm in March and cooling toward 9.5°C in June bring the season to a close.
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Pollen forecast neighborhoods 33 neighborhoods
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Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Penrith right now?
On 20 September 2026, overall pollen levels in Penrith are low. Myrtle is the main contributor to airborne pollen, while acacia and cypress remain at lower levels
Will pollen levels change in Penrith tomorrow?
On 21 September 2026, pollen conditions in Penrith will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Penrith this week?
According to the five-day outlook, myrtle, acacia, and cypress pollen levels will increase later in the week.
Which pollen types are currently active in Penrith?
On 20 September 2026, Myrtle is the dominant pollen source in Penrith. acacia and cypress are also present but at lower levels. grass are not currently active.
When is pollen season in Penrith?
How often is the Penrith pollen forecast updated?
The Penrith pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Penrith 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 Penrith 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 Penrith, 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).
