Worst air pollution Portsea Golf Club – Championship Course - Melbourne, today and tomorrow

Today (17 September): Air quality in Portsea Golf Club – Championship Course is moderate. AQI and PM2.5 are moderate; PM10 is fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM2.5: 41.7/100).
Tomorrow (18 September 2026): Air quality in Portsea Golf Club – Championship Course is fair. AQI improves to fair; PM2.5 decreases to fair; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 9:00 AM (PM2.5: 30.2/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Portsea Golf Club air quality benefits from its exceptional Mornington Peninsula Bass Strait tip position at Portsea, with powerful Bass Strait and Port Phillip Bay Heads maritime breezes providing outstanding ventilation at this dramatic clifftop ocean course. The extraordinary dual-water coastal tip exposure and the remote Peninsula setting generally maintain among Victoria's most reliably ventilated golf venues, while bushfire smoke is the primary seasonal concern throughout most of the year.

Today - 17 September | Pollution peaks at 10:00

AQI:

Moderate

41.7/100

PM2.5 (fine particles):

Moderate

41.7/100

PM10 (coarse particles):

Fair

27.6/100

NO2 (nitrogen dioxide):

Good

3.1/100

O3 (ozone):

Good

15.8/100

SO2 (sulfur dioxide):

Good

0.6/100

CO (carbon monoxide):

Good

0.3/100

HCHO (formaldehyde):

Good

1.0/100

PM1 (ultrafine particles):

Good

4.1/100

Levels show the poorest local air quality during the day

Tomorrow - 18 September | Pollution peaks at 09:00

AQI:

Fair

30.2/100

PM2.5 (fine particles):

Fair

30.2/100

PM10 (coarse particles):

Good

14.4/100

NO2 (nitrogen dioxide):

Good

14.5/100

O3 (ozone):

Good

16.2/100

SO2 (sulfur dioxide):

Good

1.6/100

CO (carbon monoxide):

Good

0.4/100

HCHO (formaldehyde):

Good

2.1/100

PM1 (ultrafine particles):

Good

10.2/100

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Frequently Asked Questions

Is air quality bad in Portsea Golf Club – Championship Course right now?

On 17 September 2026, overall air quality in Portsea Golf Club – Championship Course is moderate. AQI is the main air quality indicator at 41.7/100. Pollution peaks around 10:00 AM (PM2.5: 41.7/100).

Will air quality be worse tomorrow in Portsea Golf Club – Championship Course?

On 18 September 2026, air quality conditions in Portsea Golf Club – Championship Course will be better than today, with AQI forecast at fair at 30.2/100. Pollution peaks around 9:00 AM (PM2.5: 30.2/100).

When is air pollution at its worst in Portsea Golf Club – Championship Course?

Portsea's exposed position at the peninsula's tip means poor air quality is uncommon; when conditions do decline, it is generally during spring grass pollen season on the surrounding coastal grassland, or briefly during a significant summer bushfire smoke event. The course's multi-directional wind exposure makes it one of the more reliably fresh-air venues on the peninsula.

Are air quality levels in Portsea Golf Club – Championship Course based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 16 September 2026 at 20:30 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.

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