Sherlock pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Sherlock is low; cypress, eucalyptus, and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, eucalyptus, and grass will decrease; acacia will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 6/100 |
| Eucalyptus (Myrtaceae) | Low | 2/100 |
| Grass (Poaceae) | Low | 3/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | Low | 11/100 | |
| Eucalyptus (Myrtaceae) | Low | 7/100 | |
| Grass (Poaceae) | Low | 8/100 |
Local Environmental Conditions
Water here is bordered by river oak, a casuarina species known for prolific, far-carrying pollen, within the neighborhood's edge. Seasonal timing here generally tracks the wider region, give or take a week or so. Surrounding neighborhoods with similar tree cover typically see a closely comparable pollen mix. As with most local readings, actual levels can vary somewhat with short-term weather swings.
Water-edge river oak is usually the first allergenic tree active here, building through the depths of winter into September. Grass pollen builds through spring and peaks in November, and remaining a significant allergen right through summer until it eases in February. Daily pollen counts published for the wider region track this same seasonal rhythm closely.
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Pollen forecast neighborhoods 2 neighborhoods
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Sherlock right now?
On 20 September 2026, overall pollen levels in Sherlock are low. Cypress is the main contributor to airborne pollen, while myrtle and grass remain at lower levels
Will pollen levels change in Sherlock tomorrow?
On 21 September 2026, pollen conditions in Sherlock will be similar to today, with cypress at low levels, myrtle at low levels, grass at low levels
Is pollen expected to decrease in Sherlock this week?
According to the five-day outlook, 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 Sherlock?
On 20 September 2026, Cypress is the dominant pollen source in Sherlock. myrtle and grass are also present but at lower levels. acacia are not currently active.
When is pollen season in Sherlock?
How often is the Sherlock pollen forecast updated?
The Sherlock pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Sherlock 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 Sherlock 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 Sherlock, 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).
