Bourke pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Bourke is high; acacia is high; cypress is moderate; eucalyptus and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress remains moderate, eucalyptus remains low, grass remains low, acacia declining.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will decrease.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | High | 51/100 |
| Cypress (Cupressaceae) | Moderate | 34/100 |
| Eucalyptus (Myrtaceae) | Low | 20/100 |
| Grass (Poaceae) | Low | 17/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 47/100 | |
| Cypress (Cupressaceae) | Moderate | 29/100 | |
| Eucalyptus (Myrtaceae) | Low | 16/100 | |
| Grass (Poaceae) | Low | 13/100 |
Local Environmental Conditions
Bourke, on the Darling River in the far west, is fringed by majestic river red gums along the watercourse, with the surrounding outback dominated by saltbush and chenopod shrubland and sparse native grasses; irrigated cotton fields near town add a further crop pollen source. Grass pollen typically becomes the dominant local allergen through late spring and into summer, following an earlier and comparatively brief peak from flowering wattle and eucalypt in the cooler months.
Bourke, on the Darling River at the edge of the outback, sits in one of NSW's driest and hottest districts, giving it an irregular, rainfall-dependent pollen season rather than a predictable spring peak. River red gums and coolibah along the Darling flower from late winter, while grass and chenopod pollen from the surrounding plains responds mainly to rain events, which can occur at any time of year. When good rains fall, spring still tends to bring the heaviest pollen loads, but drought years can suppress the season almost entirely.
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Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Bourke right now?
On 20 September 2026, overall pollen levels in Bourke are high. Acacia is the main contributor to airborne pollen, while cypress, myrtle, and grass remain at lower levels
Will pollen levels change in Bourke tomorrow?
On 21 September 2026, pollen conditions in Bourke will be different from today, with cypress at moderate levels, myrtle at low levels, grass at low levels and acacia continuing to decline
Is pollen expected to decrease in Bourke 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 Bourke?
On 20 September 2026, Acacia is the dominant pollen source in Bourke. cypress, myrtle, and grass are also present but at lower levels.
When is pollen season in Bourke?
How often is the Bourke pollen forecast updated?
The Bourke pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Bourke 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 Bourke 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 Bourke, 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).
