Lesley pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Lesley is moderate; cypress and eucalyptus are moderate; acacia is low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress remains moderate, acacia increasing, eucalyptus increasing, grass at low levels.
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 | 19/100 |
| Cypress (Cupressaceae) | Moderate | 33/100 |
| Eucalyptus (Myrtaceae) | Moderate | 34/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 35/100 | |
| Cypress (Cupressaceae) | Moderate | 48/100 | |
| Eucalyptus (Myrtaceae) | High | 51/100 | |
| Grass (Poaceae) | Low | 16/100 |
Local Environmental Conditions
Located within easy reach, this area has eucalypt and wattle growing together, with wattle's fine pollen especially potent during its short flowering window. Local microclimate and soil conditions can push these figures slightly higher or lower. 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.
Eucalypt and wattle in the nearby woodland follow through late winter and early spring, usually hitting its highest point sometime between mid-August and mid-September. Through spring, grass pollen climbs steadily toward its November peak, and remaining a significant allergen right through summer until it eases in February. Small variations in local weather can nudge these windows a few days in either direction.
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Resource Hub
Pollen forecast neighborhoods 2 neighborhoods
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Lesley right now?
On 20 September 2026, overall pollen levels in Lesley are moderate. Cypress is the main contributor to airborne pollen, while myrtle and acacia remain at lower levels
Will pollen levels change in Lesley tomorrow?
On 21 September 2026, pollen conditions in Lesley will be different from today, with cypress at moderate levels, grass at low levels and acacia, myrtle increasing
Is pollen expected to decrease in Lesley 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 Lesley?
On 20 September 2026, Cypress is the dominant pollen source in Lesley. myrtle and acacia are also present but at lower levels. grass are not currently active.
When is pollen season in Lesley?
How often is the Lesley pollen forecast updated?
The Lesley pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lesley 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 Lesley 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 Lesley, 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).
