Diehard pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (16 September) pollen in Diehard is moderate; eucalyptus is moderate; cypress is low.
Pollen Tomorrow
Tomorrow (17 September 2026) cypress increasing, eucalyptus increasing, acacia at moderate levels.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will decrease; grass will remain stable.
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Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 20/100 |
| Eucalyptus (Myrtaceae) | Moderate | 45/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 28/100 | |
| Cypress (Cupressaceae) | High | 69/100 | |
| Eucalyptus (Myrtaceae) | High | 70/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Nearby, within easy reach, the riverbank shelters river oak, whose pollen spreads readily on the wind from spring onward. Here, in the vicinity, a canopy of eucalypt threaded with wattle, wattle chief among them for allergenic potency here. Actual counts still shift year to year with temperature, rainfall, and prevailing wind.
Along the waterway, river oak releases pollen first, usually the first pollen source active, peaking sometime in July or August. The nearby eucalypt and wattle stands take the lead as winter turns to spring, building to its sharpest point across August and September. Grass pollen takes over next, building to a peak around November, holding through the summer months before tapering off by late February.
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Resource Hub
Pollen forecast neighborhoods 3 neighborhoods
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Diehard right now?
On 16 September 2026, overall pollen levels in Diehard are moderate. Myrtle is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Diehard tomorrow?
On 17 September 2026, pollen conditions in Diehard will be different from today, with acacia at moderate levels and cypress, myrtle increasing
Is pollen expected to decrease in Diehard this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Diehard?
On 16 September 2026, Myrtle is the dominant pollen source in Diehard. cypress are also present but at lower levels. acacia and grass are not currently active.
When is pollen season in Diehard?
How often is the Diehard pollen forecast updated?
The Diehard pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Diehard 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 Diehard 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 Diehard, 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).
