Middle Swan pollen forecast — BIG4 Perth Midland Tourist Park neighborhood
Pollen Today
Today (20 September) pollen in BIG4 Perth Midland Tourist Park, Middle Swan 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 acacia, cypress, eucalyptus, and grass will decrease.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 7/100 |
| 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 | 17/100 | |
| Eucalyptus (Myrtaceae) | Low | 6/100 | |
| Grass (Poaceae) | Low | 6/100 |
Local Environmental Conditions
Here, just outside the immediate area, river oak grows along the bank here, releasing fine wind-borne pollen typical of casuarina species. Here, nearby, eucalypt dominating the treeline with wattle scattered through it, both contributing to the season's pollen load. Green space with maintained lawn and planted plane trees, both contributing to seasonal pollen counts, in the wider area.
In BIG4 Perth Midland Tourist Park, the nearby eucalypt and wattle stands take the lead as winter turns to spring, typically landing in August and September. Along the waterway, river oak releases pollen first, reaching its high point sometime in late winter or early spring. 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 Western Australia
Is pollen high in Middle Swan right now?
On 20 September 2026, overall pollen levels in Middle Swan are low. Acacia is the main contributor to airborne pollen, while cypress, myrtle, and grass remain at lower levels
Will pollen levels change in Middle Swan tomorrow?
On 21 September 2026, pollen conditions in Middle Swan 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 Middle Swan this week?
According to the five-day outlook, acacia, cypress, myrtle, and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Middle Swan?
On 20 September 2026, Acacia is the dominant pollen source in Middle Swan. cypress, myrtle, and grass are also present but at lower levels.
When is pollen season in Middle Swan?
How often is the Middle Swan pollen forecast updated?
The Middle Swan pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Middle Swan 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 Middle Swan 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 Middle Swan, 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).
