Big Valley Campsite, Rosa Glen Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Big Valley Campsite, Rosa Glen is low; acacia, cypress, eucalyptus, and grass are low.
Pollen Tomorrow
Tomorrow (11 October 2026) acacia remains low, grass remains low, cypress increasing, eucalyptus increasing.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 6/100 |
| Cypress (Cupressaceae) | Low | 16/100 |
| Eucalyptus (Myrtaceae) | Low | 14/100 |
| Grass (Poaceae) | Low | 13/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 18/100 | |
| Cypress (Cupressaceae) | Moderate | 28/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 27/100 | |
| Grass (Poaceae) | Low | 25/100 |
Local Environmental Conditions
This site in Rosa Glen sits among a blend of open grassland and woodland. Running water nearby means riverside vegetation is part of the local pollen picture. In the immediate area, the surrounding woods make trees an important source; open grassland adds grass and weed pollen. Grasses along roadsides, verges and open ground also add to the overall pollen load.
Flowering trees bring the first pollen of the year in mid-spring. Grasses take over in early summer and keep pollen in the air into mid-fall. A smaller weed peak follows from early summer into early fall. Rain is heaviest in winter, often giving short breaks from high pollen levels. Day to day, sunshine and wind lift the counts, while a spell of rain can bring them down sharply.
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Frequently Asked Questions About Pollen in Western Australia
Is pollen high in Rosa Glen right now?
On 10 October 2026, overall pollen levels in Rosa Glen are low. Cypress is the main contributor to airborne pollen, while myrtle, grass, and acacia remain at lower levels
Will pollen levels change in Rosa Glen tomorrow?
On 11 October 2026, pollen conditions in Rosa Glen will be different from today, with grass at low levels, acacia at low levels and cypress, myrtle increasing
Is pollen expected to decrease in Rosa Glen this week?
According to the five-day outlook, cypress, myrtle, grass, and acacia pollen levels will increase later in the week.
Which pollen types are currently active in Rosa Glen?
On 10 October 2026, Cypress is the dominant pollen source in Rosa Glen. myrtle, grass, and acacia are also present but at lower levels.
When is pollen season in Rosa Glen?
How often is the Rosa Glen pollen forecast updated?
The Rosa Glen pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Rosa Glen 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 Rosa Glen 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 Rosa Glen, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
