Worst air pollution Fremantle, today and tomorrow
Today (16 July): Air quality in Fremantle is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (O3: 15.0/100).
Tomorrow (17 July 2026): Air quality in Fremantle is good. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 16.8/100). 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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As a working port city at the mouth of the Swan River, Fremantle benefits from the reliable Indian Ocean sea breeze known locally as the Fremantle Doctor, which flushes the air on all but the stillest days. Air quality is generally very good year-round, with low humidity typical of the region's Mediterranean climate. The main seasonal risk comes each summer, December through March, when bushfire smoke can drift in from the surrounding hills or further afield and temporarily reduce visibility. Port and shipping activity adds a modest industrial contribution, but consistent onshore winds usually prevent any real build-up of pollutants.
Today - 16 July | Pollution peaks at 21:00
AQI:
Good
15.0/100
PM2.5 (fine particles):
Good
4.1/100
PM10 (coarse particles):
Good
1.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
15.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
2.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Good
16.8/100
PM2.5 (fine particles):
Good
5.3/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.8/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
1.5/100
Frequently Asked Questions
Is air quality bad in Fremantle right now?
On 16 July 2026, overall air quality in Fremantle is good. AQI is the main air quality indicator at 15.0/100. Pollution peaks around 9:00 PM (O3: 15.0/100).
Will air quality be worse tomorrow in Fremantle?
On 17 July 2026, air quality conditions in Fremantle will be similar to today, with AQI forecast at good at 16.8/100. Pollution peaks around 9:00 AM (O3: 16.8/100).
When is air pollution at its worst in Fremantle?
In Fremantle, air quality typically takes its biggest hit during hot, dry summer stretches, when bushfire smoke occasionally interrupts otherwise excellent air quality. Beyond bushfire risk, steady sea breezes keep the air remarkably clear most of the year. Sensitive groups should watch forecasts during that period rather than assume year-round conditions apply.
Are air quality levels in Fremantle 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app