Nelson Bay pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Nelson Bay is moderate; cypress is moderate; acacia and eucalyptus are low.
Pollen Tomorrow
Tomorrow (21 September 2026) acacia remains low, eucalyptus remains low, cypress declining.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
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Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 16/100 |
| Cypress (Cupressaceae) | Moderate | 30/100 |
| Eucalyptus (Myrtaceae) | Low | 17/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 5/100 | |
| Cypress (Cupressaceae) | Low | 19/100 | |
| Eucalyptus (Myrtaceae) | Low | 6/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Nelson Bay's Port Stephens setting features coastal heath, banksia and eucalypt woodland along the shoreline, with the sheltered bay supporting mangrove and casuarina stands in places. Holiday development sits alongside protected bushland reserves, and the surrounding hinterland carries grazing pasture further inland. This coastal, resort-town landscape gives Nelson Bay a pollen profile centred on native coastal trees and shrubs, with grass pollen a secondary factor.
Nelson Bay's sheltered position on Port Stephens gives it a mild, coastal pollen season moderated by sea breezes off the bay and the Tasman Sea. Coastal eucalypts, banksia and wattle flower from August, with grasses in surrounding cleared and rural land peaking October to December, generally at lower intensity than inland Hunter towns. Onshore breezes disperse pollen fairly efficiently, though warm offshore winds ahead of storms can still bring localised spikes and the thunderstorm-asthma risk recognised across the region.
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Resource Hub
Pollen forecast neighborhoods 4 neighborhoods
Sports venues in Nelson Bay 2 sports venues
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Nelson Bay right now?
On 20 September 2026, overall pollen levels in Nelson Bay are moderate. Cypress is the main contributor to airborne pollen, while myrtle and acacia remain at lower levels
Will pollen levels change in Nelson Bay tomorrow?
On 21 September 2026, pollen conditions in Nelson Bay will be different from today, with myrtle at low levels, acacia at low levels and cypress continuing to decline
Is pollen expected to decrease in Nelson Bay this week?
According to the five-day outlook, myrtle, grass, acacia, and cypress pollen levels will increase later in the week.
Which pollen types are currently active in Nelson Bay?
On 20 September 2026, Cypress is the dominant pollen source in Nelson Bay. myrtle and acacia are also present but at lower levels. grass are not currently active.
When is pollen season in Nelson Bay?
How often is the Nelson Bay pollen forecast updated?
The Nelson Bay pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Nelson Bay 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 Nelson Bay 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 Nelson Bay, 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).
