Shire of Nillumbik pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Shire of Nillumbik is high; eucalyptus is high; acacia and cypress are moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress declining, eucalyptus declining, acacia no longer expected.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will increase; grass will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Moderate | 35/100 |
| Cypress (Cupressaceae) | Moderate | 46/100 |
| Eucalyptus (Myrtaceae) | High | 65/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | Low | 8/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 26/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
With little in the way of woodland, water, or green space close by, grass and plantain and weed are the more likely drivers of pollen here. Surrounding neighborhoods with similar tree cover typically see a closely comparable pollen mix. As with most local readings, actual levels can vary somewhat with short-term weather swings.
In Shire of Nillumbik, temperatures climbing to 10.8°C by September likely mark the start of the main pollen release, with humidity around 76% helping keep counts airborne. Warmer conditions by December (17.9°C, 65% humidity) sustain grass pollen through the season, before rainfall of 54mm in March and cooling toward 7.9°C in June bring the season to a close.
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Frequently Asked Questions About Pollen in Victoria
Is pollen high in Shire of Nillumbik right now?
On 20 September 2026, overall pollen levels in Shire of Nillumbik are high. Myrtle is the main contributor to airborne pollen, while acacia and cypress remain at lower levels
Will pollen levels change in Shire of Nillumbik tomorrow?
On 21 September 2026, pollen conditions in Shire of Nillumbik will be different from today, with cypress, myrtle continuing to decline
Is pollen expected to decrease in Shire of Nillumbik this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels will increase later in the week.
Which pollen types are currently active in Shire of Nillumbik?
On 20 September 2026, Myrtle is the dominant pollen source in Shire of Nillumbik. acacia and cypress are also present but at lower levels. grass are not currently active.
When is pollen season in Shire of Nillumbik?
How often is the Shire of Nillumbik pollen forecast updated?
The Shire of Nillumbik pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Shire of Nillumbik 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 Shire of Nillumbik 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 Shire of Nillumbik, 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).
