Hill River pollen forecast — Mount Lesueur National Park (Entrance Fee) neighborhood
Pollen Today
Today (20 September) pollen in Mount Lesueur National Park (Entrance Fee), Hill River is high; acacia is high; cypress and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) acacia remains high, grass remains low, cypress increasing, eucalyptus at low levels.
7-Day Trend
Over the next week eucalyptus and grass will increase; acacia and cypress will decrease.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | High | 59/100 |
| Cypress (Cupressaceae) | Low | 24/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | Low | 6/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | High | 66/100 | |
| Cypress (Cupressaceae) | Moderate | 30/100 | |
| Eucalyptus (Myrtaceae) | Low | 4/100 | |
| Grass (Poaceae) | Low | 13/100 |
Local Environmental Conditions
With no significant tree cover, water, or park mapped close by, grass growing along roadsides and open paddock likely dominates the local pollen profile. Local wind exposure and land use can shift the exact mix slightly from block to block. Actual counts still shift year to year with temperature, rainfall, and prevailing wind.
Grass pollen climbs toward a November peak, before staying elevated through the summer months into late January. Small variations in local weather can nudge these windows a few days in either direction. Exact peak dates shift by a few weeks year to year depending on temperature and rainfall. Daily pollen counts published for the wider region track this same seasonal rhythm closely.
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Resource Hub
Pollen forecast neighborhoods 7 neighborhoods
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Hill River right now?
On 20 September 2026, overall pollen levels in Hill River are high. Acacia is the main contributor to airborne pollen, while cypress and grass remain at lower levels
Will pollen levels change in Hill River tomorrow?
On 21 September 2026, pollen conditions in Hill River will be different from today, with acacia at high levels, myrtle at low levels, grass at low levels and cypress increasing
Is pollen expected to decrease in Hill River this week?
According to the five-day outlook, acacia and cypress pollen levels are expected to gradually decrease, while myrtle and grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Hill River?
On 20 September 2026, Acacia is the dominant pollen source in Hill River. cypress and grass are also present but at lower levels. myrtle are not currently active.
When is pollen season in Hill River?
How often is the Hill River pollen forecast updated?
The Hill River pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hill River 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 Hill River 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 Hill River, 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).
