Second Valley pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Second Valley is moderate; eucalyptus is moderate; acacia, cypress, and grass are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus declining, acacia no longer expected, cypress no longer expected, grass no longer expected.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 11/100 |
| Cypress (Cupressaceae) | Low | 22/100 |
| Eucalyptus (Myrtaceae) | Moderate | 31/100 |
| Grass (Poaceae) | Low | 7/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | None | 0/100 | |
| Eucalyptus (Myrtaceae) | Low | 1/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
A stand of river oak lines the water, a reliable source of casuarina pollen through the warmer months; this sits close to home here. Seasonal timing here generally tracks the wider region, give or take a week or so. Surrounding neighborhoods with similar tree cover typically see a closely comparable pollen mix.
Water-edge river oak is usually the first allergenic tree active here, usually peaking sometime between July and September. Through spring, grass pollen climbs steadily toward its November peak, before staying elevated through the summer months into late January. Neighboring parts of the region typically see this same sequence with only minor timing shifts.
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Frequently Asked Questions About Pollen in South Australia
Is pollen high in Second Valley right now?
On 20 September 2026, overall pollen levels in Second Valley are moderate. Myrtle is the main contributor to airborne pollen, while cypress, grass, and acacia remain at lower levels
Will pollen levels change in Second Valley tomorrow?
On 21 September 2026, pollen conditions in Second Valley will be different from today, with myrtle continuing to decline
Is pollen expected to decrease in Second Valley 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 Second Valley?
On 20 September 2026, Myrtle is the dominant pollen source in Second Valley. cypress, grass, and acacia are also present but at lower levels.
When is pollen season in Second Valley?
How often is the Second Valley pollen forecast updated?
The Second Valley pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Second Valley 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 Second Valley 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 Second Valley, 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).
