Boyup Brook pollen forecast — Carnaby's Collection neighborhood
Pollen Today
Today (20 September) pollen in Carnaby's Collection, Boyup Brook is moderate; acacia and cypress are moderate; eucalyptus and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass remains low, acacia declining, cypress declining, eucalyptus no longer expected.
7-Day Trend
Over the next week acacia, eucalyptus, and grass will increase; cypress will decrease.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Moderate | 41/100 |
| Cypress (Cupressaceae) | Moderate | 38/100 |
| Eucalyptus (Myrtaceae) | Low | 18/100 |
| Grass (Poaceae) | Low | 25/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 24/100 | |
| Cypress (Cupressaceae) | Low | 21/100 | |
| Eucalyptus (Myrtaceae) | None | 0/100 | |
| Grass (Poaceae) | Low | 8/100 |
Local Environmental Conditions
Here, just outside the immediate area, the waterway's edge supports river oak, a species whose fine pollen travels well beyond the immediate bank. Maintained parkland where turf grass and ornamental plane trees add to the local pollen mix, close to this spot. Year-to-year swings in rainfall and wind can shift this picture somewhat either way.
The water-adjacent river oak is an early riser, starting well before the main spring rush, topping out around September. As spring turns to summer, grass pollen rises toward its November high, before gradually tapering off through the peak of summer into February. The overall order of species tends to hold steady, even as exact dates shift slightly each year.
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Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Boyup Brook right now?
On 20 September 2026, overall pollen levels in Boyup Brook are moderate. Acacia is the main contributor to airborne pollen, while cypress, myrtle, and grass remain at lower levels
Will pollen levels change in Boyup Brook tomorrow?
On 21 September 2026, pollen conditions in Boyup Brook will be different from today, with grass at low levels and acacia, cypress continuing to decline
Is pollen expected to decrease in Boyup Brook this week?
According to the five-day outlook, cypress pollen levels are expected to gradually decrease, while myrtle, grass, and acacia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Boyup Brook?
On 20 September 2026, Acacia is the dominant pollen source in Boyup Brook. cypress, myrtle, and grass are also present but at lower levels.
When is pollen season in Boyup Brook?
How often is the Boyup Brook pollen forecast updated?
The Boyup Brook pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Boyup Brook 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 Boyup Brook 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 Boyup Brook, 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).
