Roelands pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Roelands is high; cypress is high; eucalyptus is moderate; acacia and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) acacia remains low, eucalyptus remains moderate, grass remains low, cypress declining.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 25/100 |
| Cypress (Cupressaceae) | High | 55/100 |
| Eucalyptus (Myrtaceae) | Moderate | 45/100 |
| Grass (Poaceae) | Low | 25/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 13/100 | |
| Cypress (Cupressaceae) | Moderate | 43/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 33/100 | |
| Grass (Poaceae) | Low | 14/100 |
Local Environmental Conditions
Located in the wider area, this area has a stand of eucalypt with wattle through the understorey, wattle ranked among the region's sharpest allergens. Ground-level conditions like local landscaping can nudge these figures slightly either way. Nearby weather stations report comparable trends across the broader stretch of the region. Small shifts in elevation or soil type can move these figures a little either way.
The nearby eucalypt and wattle stands take the lead as winter turns to spring, usually hitting its highest point sometime between mid-August and mid-September. Grass pollen rises through spring toward a November high point, then persisting at a reduced but still meaningful level into the new year. Small variations in local weather can nudge these windows a few days in either direction.
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Pollen forecast neighborhoods 1 neighborhood
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Roelands right now?
On 20 September 2026, overall pollen levels in Roelands are high. Cypress is the main contributor to airborne pollen, while myrtle, acacia, and grass remain at lower levels
Will pollen levels change in Roelands tomorrow?
On 21 September 2026, pollen conditions in Roelands will be different from today, with acacia at low levels, myrtle at moderate levels, grass at low levels and cypress continuing to decline
Is pollen expected to decrease in Roelands this week?
According to the five-day outlook, acacia, cypress, myrtle, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Roelands?
On 20 September 2026, Cypress is the dominant pollen source in Roelands. myrtle, acacia, and grass are also present but at lower levels.
When is pollen season in Roelands?
How often is the Roelands pollen forecast updated?
The Roelands pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Roelands 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 Roelands 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 Roelands, 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).
