Portsea, Shire of Mornington Peninsula Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Portsea, Shire of Mornington Peninsula is moderate; cypress is moderate; acacia is low.
Pollen Tomorrow
Tomorrow (11 October 2026) acacia remains low, cypress remains moderate, eucalyptus at low levels.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will increase; grass will remain stable.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 8/100 |
| Cypress (Cupressaceae) | Moderate | 34/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 16/100 | |
| Cypress (Cupressaceae) | Moderate | 42/100 | |
| Eucalyptus (Myrtaceae) | Low | 6/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
This site in Shire of Mornington Peninsula is surrounded mainly by woodland, with some open grassland. A nearby park adds mown lawns and planted trees to the local pollen mix. Trees are an important local pollen source, given how much woodland surrounds the area. Grasses are a major source, with pigweed adding to the weed pollen load.
Flowering trees bring the first pollen of the year in early spring. Grasses take over in early summer and keep pollen in the air into early fall. Pigweed brings a final peak from early summer into early fall. Spring is the wettest time of year, and heavy showers can bring short breaks in pollen.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Shire of Mornington Peninsula right now?
On 10 October 2026, overall pollen levels in Shire of Mornington Peninsula are moderate. Cypress is the main contributor to airborne pollen, while acacia remain at lower levels
Will pollen levels change in Shire of Mornington Peninsula tomorrow?
On 11 October 2026, pollen conditions in Shire of Mornington Peninsula will be different from today, with acacia at low levels, cypress at moderate levels, myrtle at low levels
Is pollen expected to decrease in Shire of Mornington Peninsula 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 Shire of Mornington Peninsula?
On 10 October 2026, Cypress is the dominant pollen source in Shire of Mornington Peninsula. acacia are also present but at lower levels. myrtle and grass are not currently active.
When is pollen season in Shire of Mornington Peninsula?
How often is the Shire of Mornington Peninsula pollen forecast updated?
The Shire of Mornington Peninsula pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Shire of Mornington Peninsula 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 Shire of Mornington Peninsula 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 Shire of Mornington Peninsula, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
