Harrow pollen forecast — Johnny Mullagh Park Camping Ground neighborhood
Pollen Today
Today (16 September) pollen in Johnny Mullagh Park Camping Ground, Harrow is moderate; cypress is moderate; acacia, eucalyptus, and grass are low.
Pollen Tomorrow
Tomorrow (17 September 2026) cypress remains moderate, grass remains low, acacia increasing, eucalyptus increasing.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will decrease.
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Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 23/100 |
| Cypress (Cupressaceae) | Moderate | 36/100 |
| Eucalyptus (Myrtaceae) | Low | 21/100 |
| Grass (Poaceae) | Low | 13/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 32/100 | |
| Cypress (Cupressaceae) | Moderate | 45/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 30/100 | |
| Grass (Poaceae) | Low | 22/100 |
Local Environmental Conditions
Nearby, close by, water here is bordered by river oak, a casuarina species known for prolific, far-carrying pollen. Nearby, close to this spot, a park where mown turf grass and ornamental plane trees add to local grass and tree pollen. Neighboring areas with similar land cover tend to show a closely matching pollen mix.
At Johnny Mullagh Park Camping Ground, the bank's river oak kicks off the pollen season ahead of the rest, topping out well before most other trees start releasing pollen, around July and August. Through spring, grass pollen climbs steadily toward its November peak, before staying elevated through the summer months into late January.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Harrow right now?
On 16 September 2026, overall pollen levels in Harrow are moderate. Cypress is the main contributor to airborne pollen, while acacia, myrtle, and grass remain at lower levels
Will pollen levels change in Harrow tomorrow?
On 17 September 2026, pollen conditions in Harrow will be different from today, with cypress at moderate levels, grass at low levels and acacia, myrtle increasing
Is pollen expected to decrease in Harrow this week?
According to the five-day outlook, acacia, 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 Harrow?
On 16 September 2026, Cypress is the dominant pollen source in Harrow. acacia, myrtle, and grass are also present but at lower levels.
When is pollen season in Harrow?
How often is the Harrow pollen forecast updated?
The Harrow pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Harrow 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 Harrow 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 Harrow, 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).
