Yornup pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Yornup is high; cypress and eucalyptus are high; acacia is moderate; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains high, acacia declining, cypress declining, grass no longer expected.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
Explore Forecasts
Air Quality
Pollen in Other Cities
Air Quality in Other Cities
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Moderate | 26/100 |
| Cypress (Cupressaceae) | High | 54/100 |
| Eucalyptus (Myrtaceae) | High | 70/100 |
| Grass (Poaceae) | Low | 18/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 6/100 | |
| Cypress (Cupressaceae) | Moderate | 34/100 | |
| Eucalyptus (Myrtaceae) | High | 56/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
A mix of eucalypt and wattle, wattle in particular a notorious trigger for hay fever across southern Australia, not far from here. The broader area tends to mirror this pattern, with only minor local variation. Seasonal timing here generally tracks the wider region, give or take a week or so.
The area's eucalypt and wattle trees pollinate through late winter and early spring, cresting around August and September in the year's sharpest tree-pollen spike. Grass pollen rises through spring toward a November high point, holding through the summer months before tapering off by late February. Year-to-year timing varies a little, though the general sequence stays fairly consistent here.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Yornup right now?
On 20 September 2026, overall pollen levels in Yornup are high. Cypress is the main contributor to airborne pollen, while myrtle, acacia, and grass remain at lower levels
Will pollen levels change in Yornup tomorrow?
On 21 September 2026, pollen conditions in Yornup will be different from today, with myrtle at high levels and acacia, cypress continuing to decline
Is pollen expected to decrease in Yornup 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 Yornup?
On 20 September 2026, Cypress is the dominant pollen source in Yornup. myrtle, acacia, and grass are also present but at lower levels.
When is pollen season in Yornup?
How often is the Yornup pollen forecast updated?
The Yornup pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Yornup 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 Yornup 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 Yornup, 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).
