Merredin pollen forecast — 2/1 Australian General Hospital ruins neighborhood
Pollen Today
Today (20 September) pollen in 2/1 Australian General Hospital ruins, Merredin is low; acacia and cypress are low.
Pollen Tomorrow
Tomorrow (21 September 2026) acacia increasing, cypress increasing, eucalyptus at moderate levels, grass at moderate levels.
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) | Low | 8/100 |
| Cypress (Cupressaceae) | Low | 4/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 45/100 | |
| Cypress (Cupressaceae) | Moderate | 41/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 28/100 | |
| Grass (Poaceae) | Moderate | 26/100 |
Local Environmental Conditions
This area, close by, has the nearest creek or river hosts river oak, among the most allergenic wind-pollinated trees found on watercourses. Year-to-year swings in rainfall and wind can shift this picture somewhat either way. Comparable land cover in surrounding areas tends to produce a similar pollen mix overall. Local microclimate and soil conditions can push these figures slightly higher or lower.
The water-adjacent river oak is an early riser, usually the first pollen source active, peaking sometime in July or August. Grass pollen takes over next, building to a peak around November, before pollen counts gradually decline through January and February. Daily pollen counts published for the wider region track this same seasonal rhythm closely.
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Pollen forecast neighborhoods 6 neighborhoods
Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Merredin right now?
On 20 September 2026, overall pollen levels in Merredin are low. Acacia is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Merredin tomorrow?
On 21 September 2026, pollen conditions in Merredin will be different from today, with myrtle at moderate levels, grass at moderate levels and acacia, cypress increasing
Is pollen expected to decrease in Merredin this week?
According to the five-day outlook, myrtle, grass, acacia, and cypress pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Merredin?
On 20 September 2026, Acacia is the dominant pollen source in Merredin. cypress are also present but at lower levels. myrtle and grass are not currently active.
When is pollen season in Merredin?
How often is the Merredin pollen forecast updated?
The Merredin pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Merredin 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 Merredin 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 Merredin, 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).
