Marangaroo pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Marangaroo is low; acacia, cypress, eucalyptus, and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass will increase; acacia, cypress, and eucalyptus will decrease.
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Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 10/100 |
| Cypress (Cupressaceae) | Low | 15/100 |
| Eucalyptus (Myrtaceae) | Low | 4/100 |
| Grass (Poaceae) | Low | 4/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 9/100 | |
| Cypress (Cupressaceae) | Low | 13/100 | |
| Eucalyptus (Myrtaceae) | Low | 3/100 | |
| Grass (Poaceae) | Low | 2/100 |
Local Environmental Conditions
Here, close by, water here is bordered by river oak, a casuarina species known for prolific, far-carrying pollen. Here, close to this spot, woods composed largely of eucalypt with wattle at the margins, a combination tied to sharp late-winter pollen spikes. Here, just outside the immediate area, a park whose lawns and ornamental plane trees quietly add to local pollen levels.
The bank's river oak kicks off the pollen season ahead of the rest, climbing steadily from mid-winter into September. The area's eucalypt and wattle trees pollinate through late winter and early spring, typically the year's sharpest tree-pollen spell, centered on wattle's flowering in August and September. Through spring, grass pollen climbs steadily toward its November peak, before staying elevated through the summer months into late January.
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Resource Hub
Sports venues in Marangaroo 1 sports venue
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Marangaroo right now?
On 20 September 2026, overall pollen levels in Marangaroo are low. Acacia is the main contributor to airborne pollen, while cypress, myrtle, and grass remain at lower levels
Will pollen levels change in Marangaroo tomorrow?
On 21 September 2026, pollen conditions in Marangaroo will be similar to today, with acacia at low levels, cypress at low levels, myrtle at low levels, grass at low levels
Is pollen expected to decrease in Marangaroo this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Marangaroo?
On 20 September 2026, Acacia is the dominant pollen source in Marangaroo. cypress, myrtle, and grass are also present but at lower levels.
When is pollen season in Marangaroo?
How often is the Marangaroo pollen forecast updated?
The Marangaroo pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Marangaroo 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 Marangaroo 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 Marangaroo, 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).
