Cranbourne pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (16 September) pollen in Cranbourne is low; acacia, cypress, and eucalyptus are low.
Pollen Tomorrow
Tomorrow (17 September 2026) eucalyptus remains low, acacia increasing, cypress increasing.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will decrease; grass will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 13/100 |
| Cypress (Cupressaceae) | Low | 17/100 |
| Eucalyptus (Myrtaceae) | Low | 6/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 29/100 | |
| Cypress (Cupressaceae) | Moderate | 34/100 | |
| Eucalyptus (Myrtaceae) | Low | 23/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Cranbourne's landscape mixes outer-suburban development with remnant volcanic-plains grassland and the native plantings of the Royal Botanic Gardens Cranbourne, home to the Australian Garden's showcase of local flora. Surrounding paddocks support market gardening and grazing on cleared basalt soils, while scattered stands of eucalypt woodland and wattle line creek reserves. Introduced grasses dominate open ground, and streets carry a typical mix of natives and deciduous exotics, giving the area a broad pollen profile spanning native trees, wattle, and pasture grass.
Cranbourne sits on Melbourne's southeastern growth corridor, so its pollen calendar follows Melbourne's temperate rhythm. Wattle and other native trees flower through August, joined by early eucalyptus release, before ryegrass and pasture grasses take over the flat volcanic plains from October to December. Spring here can turn dangerous fast: warm northerly winds followed by a cool change can rupture grass pollen grains, feeding the same thunderstorm-asthma mechanism that hit greater Melbourne in November 2016. By January, grass pollen fades and the risk shifts toward heat and dust from surrounding market-garden paddocks.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Cranbourne right now?
On 16 September 2026, overall pollen levels in Cranbourne are low. Acacia is the main contributor to airborne pollen, while cypress and myrtle remain at lower levels
Will pollen levels change in Cranbourne tomorrow?
On 17 September 2026, pollen conditions in Cranbourne will be different from today, with myrtle at low levels and acacia, cypress increasing
Is pollen expected to decrease in Cranbourne this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Cranbourne?
On 16 September 2026, Acacia is the dominant pollen source in Cranbourne. cypress and myrtle are also present but at lower levels. grass are not currently active.
When is pollen season in Cranbourne?
How often is the Cranbourne pollen forecast updated?
The Cranbourne pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Cranbourne 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 Cranbourne 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 Cranbourne, 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).
