Rainbow pollen forecast — Hermans Hill Lookout neighborhood
Pollen Today
Today (16 September) pollen in Hermans Hill Lookout, Rainbow is high; acacia is high; cypress, eucalyptus, and grass are low.
Pollen Tomorrow
Tomorrow (17 September 2026) acacia remains high, cypress increasing, eucalyptus increasing, grass increasing.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will decrease.
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Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | High | 51/100 |
| Cypress (Cupressaceae) | Low | 25/100 |
| Eucalyptus (Myrtaceae) | Low | 11/100 |
| Grass (Poaceae) | Low | 9/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | High | 67/100 | |
| Cypress (Cupressaceae) | Moderate | 42/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 28/100 | |
| Grass (Poaceae) | Moderate | 26/100 |
Local Environmental Conditions
This area, a short distance from here, has a mix of eucalypt and wattle, wattle in particular a notorious trigger for hay fever across southern Australia. The general pattern described here holds fairly steady across nearby areas with similar land cover. Local wind exposure and land use can shift the exact mix slightly from block to block.
Eucalypt and wattle in the woodland come next, as wattle bursts into flower, generally peaking somewhere between August and October. Grass pollen becomes the dominant allergen through spring, peaking in November, before continuing at a lower but still notable level through January and February. Daily pollen counts published for the wider region track this same seasonal rhythm closely.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Rainbow right now?
On 16 September 2026, overall pollen levels in Rainbow are high. Acacia is the main contributor to airborne pollen, while myrtle, grass, and cypress remain at lower levels
Will pollen levels change in Rainbow tomorrow?
On 17 September 2026, pollen conditions in Rainbow will be different from today, with acacia at high levels and myrtle, grass, cypress increasing
Is pollen expected to decrease in Rainbow 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 Rainbow?
On 16 September 2026, Acacia is the dominant pollen source in Rainbow. myrtle, grass, and cypress are also present but at lower levels.
When is pollen season in Rainbow?
How often is the Rainbow pollen forecast updated?
The Rainbow pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Rainbow 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 Rainbow 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 Rainbow, 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).
