North Brother pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in North Brother is moderate; cypress and eucalyptus are moderate; acacia is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will decrease; grass will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 25/100 |
| Cypress (Cupressaceae) | Moderate | 50/100 |
| Eucalyptus (Myrtaceae) | Moderate | 29/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 22/100 | |
| Cypress (Cupressaceae) | Moderate | 47/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 26/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Here, just around the area, a waterway lined with river oak, a wind-pollinated species and one of the more potent allergen sources along Australian creeks and rivers. Located close by, this area has eucalypt dominating the treeline with wattle scattered through it, both contributing to the season's pollen load. As with most local readings, actual levels can vary somewhat with short-term weather swings.
The waterside river oak is consistently first to release pollen each year, reaching its high point sometime in late winter or early spring. Once river oak fades, eucalypt and wattle in the woods carry the season forward, reaching maximum intensity across the August-September window. By late spring, grass pollen is climbing steadily toward a November high point, before gradually tapering off through the peak of summer into February.
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Resource Hub
Pollen forecast neighborhoods 3 neighborhoods
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in North Brother right now?
On 20 September 2026, overall pollen levels in North Brother are moderate. Cypress is the main contributor to airborne pollen, while myrtle and acacia remain at lower levels
Will pollen levels change in North Brother tomorrow?
On 21 September 2026, pollen conditions in North Brother will be similar to today, with acacia at low levels, cypress at moderate levels, myrtle at moderate levels
Is pollen expected to decrease in North Brother 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 North Brother?
On 20 September 2026, Cypress is the dominant pollen source in North Brother. myrtle and acacia are also present but at lower levels. grass are not currently active.
When is pollen season in North Brother?
How often is the North Brother pollen forecast updated?
The North Brother pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in North Brother 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 North Brother 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 North Brother, 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).
