Stratham pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Stratham is moderate; acacia, cypress, and eucalyptus are moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) acacia remains moderate, cypress remains moderate, eucalyptus 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) | Moderate | 46/100 |
| Cypress (Cupressaceae) | Moderate | 49/100 |
| Eucalyptus (Myrtaceae) | Moderate | 27/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 35/100 | |
| Cypress (Cupressaceae) | Moderate | 38/100 | |
| Eucalyptus (Myrtaceae) | Low | 16/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Eucalypt dominating the treeline with wattle scattered through it, both contributing to the season's pollen load; this sits within the local area. Year-to-year swings in rainfall and wind can shift this picture somewhat either way. Comparable land cover in surrounding areas tends to produce a similar pollen mix overall. Local microclimate and soil conditions can push these figures slightly higher or lower.
Eucalypt and wattle in the woods pick up where river oak leaves off, building to its sharpest point across August and September. Through spring, grass pollen climbs steadily toward its November peak, with the season extending well into summer before finally winding down in February. Local weather swings can shift these windows slightly, but the overall order tends to hold.
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Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Stratham right now?
On 20 September 2026, overall pollen levels in Stratham are moderate. Acacia is the main contributor to airborne pollen, while cypress and myrtle remain at lower levels
Will pollen levels change in Stratham tomorrow?
On 21 September 2026, pollen conditions in Stratham will be different from today, with acacia at moderate levels, cypress at moderate levels and myrtle continuing to decline
Is pollen expected to decrease in Stratham 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 Stratham?
On 20 September 2026, Acacia is the dominant pollen source in Stratham. cypress and myrtle are also present but at lower levels. grass are not currently active.
When is pollen season in Stratham?
How often is the Stratham pollen forecast updated?
The Stratham pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Stratham 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 Stratham 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 Stratham, 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).
