Silvan pollen forecast — Silvan Reservoir Lookout neighborhood
Pollen Today
Today (20 September) pollen in Silvan Reservoir Lookout, Silvan is high; eucalyptus is high; acacia and cypress are moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress declining, eucalyptus declining, acacia 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) | Moderate | 26/100 |
| Cypress (Cupressaceae) | Moderate | 41/100 |
| Eucalyptus (Myrtaceae) | High | 62/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | Low | 2/100 | |
| Eucalyptus (Myrtaceae) | Low | 23/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
River oak thrives along the damp bank, a classic riparian wind-pollinator in this part of Australia; this sits near this part of town. This area, just outside the immediate area, has woodland where eucalypt stands alongside wattle, the latter especially aggressive as an allergen when in full flower. Located in the vicinity, this area has a park whose turf grass and ornamental plane trees feed local pollen levels through spring.
River oak by the water is typically first out of the gate, building through the depths of winter into September. Once river oak fades, eucalypt and wattle in the woods carry the season forward, typically landing in August and September. Grass pollen becomes the dominant allergen through spring, peaking in November, then persisting at a reduced but still meaningful level into the new year.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Silvan right now?
On 20 September 2026, overall pollen levels in Silvan are high. Myrtle is the main contributor to airborne pollen, while acacia and cypress remain at lower levels
Will pollen levels change in Silvan tomorrow?
On 21 September 2026, pollen conditions in Silvan will be different from today, with cypress, myrtle continuing to decline
Is pollen expected to decrease in Silvan 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 Silvan?
On 20 September 2026, Myrtle is the dominant pollen source in Silvan. acacia and cypress are also present but at lower levels. grass are not currently active.
When is pollen season in Silvan?
How often is the Silvan pollen forecast updated?
The Silvan pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Silvan 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 Silvan 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 Silvan, 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).
