Nepean Lookout, Mount Portal Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (6 October) pollen in Nepean Lookout, Mount Portal is moderate; eucalyptus is moderate; cypress is low.
Pollen Tomorrow
Tomorrow (7 October 2026) cypress increasing, eucalyptus increasing, acacia at low levels.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
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Pollen Risk
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 13/100 |
| Eucalyptus (Myrtaceae) | Moderate | 43/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 7 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 25/100 | |
| Cypress (Cupressaceae) | Moderate | 44/100 | |
| Eucalyptus (Myrtaceae) | High | 70/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
This site in Mount Portal is heavily wooded. Close to a watercourse, riverside vegetation contributes to what is in the air. The surrounding woodland makes trees an important local pollen source. Grasses are also a significant pollen source here. Clearings, tracks and woodland edges let grasses and other flowering plants grow among the trees.
Tree pollen comes first, peaking in late winter. Grasses take over in mid-spring, with temperatures around 15°C, and their pollen lingers into late summer. A smaller weed peak follows from early summer into early fall. Rain is heaviest in fall, often giving short breaks from high pollen levels. Weather shapes each of these periods: dry, windy spells drive levels up, and showers wash pollen out of the air.
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Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Mount Portal right now?
On 6 October 2026, overall pollen levels in Mount Portal are moderate. Myrtle is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Mount Portal tomorrow?
On 7 October 2026, pollen conditions in Mount Portal will be different from today, with acacia at low levels and cypress, myrtle increasing
Is pollen expected to decrease in Mount Portal this week?
According to the five-day outlook, acacia, cypress, myrtle, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Mount Portal?
On 6 October 2026, Myrtle is the dominant pollen source in Mount Portal. cypress are also present but at lower levels. acacia and grass are not currently active.
When is pollen season in Mount Portal?
How often is the Mount Portal pollen forecast updated?
The Mount Portal pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Mount Portal 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 Mount Portal 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 Mount Portal, 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).
