Cheviot Hill, Portsea Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (6 October) pollen in Cheviot Hill, Portsea is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (7 October 2026) mold (alternaria) remains low, mold (cladosporium) remains low, acacia at low levels, cypress at low levels, eucalyptus at low levels.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, mold (alternaria), and mold (cladosporium) will decrease; grass will remain stable.
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Pollen Risk
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Alternaria | Low | 2/100 |
| Cladosporium | Low | 4/100 |
Tomorrow - 7 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 17/100 | |
| Cypress (Cupressaceae) | Low | 20/100 | |
| Eucalyptus (Myrtaceae) | Low | 18/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Alternaria | Low | 4/100 | |
| Cladosporium | Low | 6/100 |
Local Environmental Conditions
Around 57% of the area near this location in Portsea is open water, with a good deal of woodland. With much of the immediate area made up of open water, local pollen production is limited, though pollen can still drift in from surrounding land. Woodland on all sides makes trees an important local pollen source. Grasses and pigweed growing in the surroundings are the main non-tree sources of pollen.
Tree pollen comes first, peaking in early spring. Then come the grasses, strongest in early summer and fading by 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. Actual levels on any given day depend on the weather, with dry, breezy days the worst and wet days the mildest.
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Resource Hub
Pollen forecast neighborhoods 8 neighborhoods
Sports venues in Portsea 1 sports venue
Frequently Asked Questions About Pollen in Victoria
Is pollen high in Portsea right now?
Currently, there is no significant pollen in Portsea.
Will pollen levels change in Portsea tomorrow?
On 7 October 2026, pollen conditions in Portsea will be different from today, with cypress at low levels, myrtle at low levels, acacia at low levels
Is pollen expected to decrease in Portsea this week?
According to the five-day outlook, cypress, myrtle, and acacia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Portsea?
On 6 October 2026, there are no significant pollen types in Portsea.
When is pollen season in Portsea?
How often is the Portsea pollen forecast updated?
The Portsea pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Portsea 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 Portsea 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 Portsea, 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).
