Capital Hill pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Capital Hill is low; acacia, cypress, and eucalyptus are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains low, acacia no longer expected, cypress 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) | Low | 11/100 |
| Cypress (Cupressaceae) | Low | 13/100 |
| Eucalyptus (Myrtaceae) | Low | 19/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | None | 0/100 | |
| Eucalyptus (Myrtaceae) | Low | 1/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Located not far from here, this area has river oak grows along the bank here, releasing fine wind-borne pollen typical of casuarina species. Woodland where eucalypt stands alongside wattle, the latter especially aggressive as an allergen when in full flower, not far from here. Maintained parkland where turf grass and ornamental plane trees add to the local pollen mix; this sits close to this spot.
Water-edge river oak is usually the first allergenic tree active here, climbing steadily from mid-winter into September. The area's eucalypt and wattle trees pollinate through late winter and early spring, peaking as wattle comes into full flower, generally August into September. Grass pollen builds through spring and peaks in November, and remaining a significant allergen right through summer until it eases in February.
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Resource Hub
Pollen forecast neighborhoods 3 neighborhoods
Frequently Asked Questions About Pollen in Australian Capital Territory
Is pollen high in Capital Hill right now?
On 20 September 2026, overall pollen levels in Capital Hill are low. Cypress is the main contributor to airborne pollen, while myrtle and acacia remain at lower levels
Will pollen levels change in Capital Hill tomorrow?
On 21 September 2026, pollen conditions in Capital Hill will be different from today, with myrtle at low levels
Is pollen expected to decrease in Capital Hill this week?
According to the five-day outlook, cypress, myrtle, and acacia pollen levels will increase later in the week.
Which pollen types are currently active in Capital Hill?
On 20 September 2026, Cypress is the dominant pollen source in Capital Hill. myrtle and acacia are also present but at lower levels. grass are not currently active.
When is pollen season in Capital Hill?
How often is the Capital Hill pollen forecast updated?
The Capital Hill pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Capital Hill 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 Capital Hill 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 Capital Hill, 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).
