Glen Iris pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Glen Iris 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 | 13/100 |
| Cypress (Cupressaceae) | Low | 22/100 |
| Eucalyptus (Myrtaceae) | Low | 10/100 |
| 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
This area, just outside the immediate area, has river oak thrives along the damp bank, a classic riparian wind-pollinator in this part of Australia. Here, within the neighborhood, woodland dominated by eucalypt and wattle, with wattle the more potent allergen of the two. A park whose lawns and ornamental plane trees quietly add to local pollen levels, in the wider area.
Water-edge river oak is usually the first allergenic tree active here, building through the depths of winter into September. The nearby eucalypt and wattle stands take the lead as winter turns to spring, climbing steadily through late winter to a peak in August or September. Grass pollen rises through spring toward a November high point, then holding at a high level well into January before easing off.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Glen Iris right now?
On 20 September 2026, overall pollen levels in Glen Iris are low. Acacia is the main contributor to airborne pollen, while cypress and myrtle remain at lower levels
Will pollen levels change in Glen Iris tomorrow?
On 21 September 2026, pollen conditions in Glen Iris will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Glen Iris this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels will increase later in the week.
Which pollen types are currently active in Glen Iris?
On 20 September 2026, Acacia is the dominant pollen source in Glen Iris. cypress and myrtle are also present but at lower levels. grass are not currently active.
When is pollen season in Glen Iris?
How often is the Glen Iris pollen forecast updated?
The Glen Iris pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Glen Iris 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 Glen Iris 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 Glen Iris, 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).
