Fine particles
6.6µg/m³Fair · 1 hourCAMS model • Open-Meteo
MelbourneAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Melbourne - latest available concentrations (October 23, 2026, 12:00 local time): PM2.5: 6.6 µg/m³, PM10: 9.2 µg/m³, O₃: 73 µg/m³, NO₂: 2.3 µg/m³, SO₂: 2.5 µg/m³, CO: 81 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →
3 weather warnings in effect for Australia
Melbourne · Air pollutant concentrations
Data time: October 23, 2026 · 12:00 · local timeParticulate matter
9.2µg/m³Good · 1 hourOzone
73µg/m³Fair · 1 hourNitrogen dioxide
2.3µg/m³Good · 1 hourSulphur dioxide
2.5µg/m³Good · 1 hourCarbon monoxide
81µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Melbourne
Melbourne - air pollution over recent days (2026-08-31 - 2026-10-22)
Concentrations of all available pollutants for this city.
PM2.5Lowest 2.38 2026-09-05Highest 15.33 2026-08-312026-08-31 - 2026-10-22
PM10Lowest 3.5 2026-09-05Highest 19.8 2026-08-312026-08-31 - 2026-10-22
O₃Lowest 35.54 2026-08-31Highest 56.63 2026-10-202026-08-31 - 2026-10-22
NO₂Lowest 3.35 2026-09-05Highest 17.34 2026-08-312026-08-31 - 2026-10-22
SO₂Lowest 0.99 2026-09-05Highest 4.82 2026-08-312026-08-31 - 2026-10-22
COLowest 79.71 2026-09-05Highest 178.21 2026-08-312026-08-31 - 2026-10-22
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-10-22 | 2026-10-21 | 2026-10-20 | 2026-10-19 | 2026-10-18 | 2026-10-17 | 2026-10-16 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 10.65 | 9.71 | 5.53 | 7.78 | 9.48 | 9.4 | 9.25 | 8.15 | 5.23 | 2.38 | 9.01 | 9.08 | 5.85 | 4.63 | 15.33 |
| PM10 | 12.21 | 13.5 | 8.05 | 9.75 | 11.61 | 12.03 | 10.66 | 12.4 | 7.32 | 3.5 | 12.98 | 13.45 | 7.99 | 5.1 | 19.8 |
| O₃ | 55.58 | 46.17 | 56.63 | 48.88 | 44.79 | 50.13 | 36.88 | 46.46 | 47.63 | 47.79 | 42.38 | 44.96 | 44.21 | 46.42 | 35.54 |
| NO₂ | 13.8 | 10.27 | 6.99 | 11.96 | 14.18 | 13.9 | 14.48 | 5.83 | 6.23 | 3.35 | 7.91 | 6.73 | 9.03 | 10.43 | 17.34 |
| SO₂ | 3.14 | 2.72 | 2.41 | 2.83 | 3.46 | 4.25 | 4.15 | 1.62 | 1.9 | 0.99 | 1.78 | 1.59 | 1.96 | 2.27 | 4.82 |
| CO | 133.25 | 109.33 | 87.71 | 93.63 | 120.83 | 138.25 | 158.67 | 88.71 | 95.54 | 79.71 | 94.04 | 96.13 | 114.29 | 96.54 | 178.21 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
Environment and quality of life ratings · Melbourne
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Melbourne | East Timor | Papua New Guinea | New Caledonia | Christmas Island | Norfolk Island |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 80% | 53% | 27% | 70% | — | — |
| particulate matter PM2.5 (µg/m³) | 8 | — | — | — | — | — |
| Pleasure of spending time in the city | 77% | 44% | 34% | 50% | — | — |
| particulate matter PM10 (µg/m³) | 19 | — | — | — | — | — |
| Air Pollution | 25% | 36% | 63% | 55% | — | — |
| Garbage Disposal | 70% | 19% | 18% | 30% | — | — |
| Availability and quality of drinking water | 85% | 38% | 38% | 75% | — | — |
| Cleanliness and tidiness | 65% | 25% | 22% | 30% | — | — |
| Noise and Light pollution | 43% | 53% | 58% | 45% | — | — |
| Water Pollution | 32% | 64% | 76% | 55% | — | — |
Air quality in nearby cities
All cities →Australia↗
Geelong
PM2.57.3
PM109.4
µg/m³
PM2.5 · FairNO₂ 0.8O₃ 71
October 23, 202612:00
Australia↗
Bendigo
PM2.55.4
PM106.9
µg/m³
PM2.5 · FairNO₂ 0.6O₃ 67
October 23, 202612:00
Australia↗
Canberra
PM2.53.3
PM104.7
µg/m³
PM2.5 · GoodNO₂ 1O₃ 66
October 23, 202612:00
Australia↗
Hobart
PM2.54.4
PM106.8
µg/m³
PM2.5 · GoodNO₂ 0.6O₃ 77
October 23, 202612:00
Australia↗
Wollongong
PM2.56.4
PM109.2
µg/m³
PM2.5 · FairNO₂ 2.9O₃ 72
October 23, 202612:00
Australia↗
Adelaide
PM2.57.9
PM1010.8
µg/m³
PM2.5 · FairNO₂ 9.8O₃ 45
October 23, 202611:30
Australia↗
Sydney
PM2.56.4
PM109.6
µg/m³
PM2.5 · FairNO₂ 4.4O₃ 63
October 23, 202612:00
Australia↗
Toowoomba
PM2.51.9
PM102.8
µg/m³
PM2.5 · GoodNO₂ 0.8O₃ 57
October 23, 202611:00
Australia · air quality in other cities
WEATHER & SURROUNDINGS
Melbourne · weather forecast
Daily maximum and minimum temperatures. Forecast point: -37.814, 144.9633.
Scroll the forecast to see the following days.
Melbourne · October 21, 2026: minimum temperature 17.4°C, maximum 27.8°C. Wind: 13.8 km/h. Humidity: 52%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-10-21 | 27.1 | 17.4 | 27.8 | 18.5 | 5.5 | 3.8 | 52 | 44 |
| 2026-10-22 | 30.3 | 15 | 33.2 | 22.8 | 1.8 | 4.8 | 36 | 1 |
| 2026-10-23 | 29.5 | 19.6 | 35.7 | 19.6 | 0.4 | 8.2 | 37 | 7 |
| 2026-10-24 | 21.3 | 14.7 | 23 | 15.7 | 6 | 4.2 | 71 | 74 |
| 2026-10-25 | 12.7 | 11.1 | 15.8 | 11.1 | 43 | 6.6 | 96 | 100 |
| 2026-10-26 | 14.4 | 9 | 14.4 | 10.8 | 2.5 | 5.6 | 47 | 45 |
| 2026-10-27 | 14 | 7.4 | 14 | 10.3 | 2 | 4.4 | 51 | 78 |
| 2026-10-28 | 16.8 | 8.6 | 16.8 | 12.1 | 0.7 | 4.2 | 54 | 54 |
| 2026-10-29 | 19 | 10.2 | 19.3 | 13.2 | 3.1 | 3.9 | 57 | 91 |
| 2026-10-30 | 22.3 | 11 | 22.3 | 16.2 | 1.9 | 4.3 | 48 | 100 |
| 2026-10-31 | 19.9 | 14.3 | 19.9 | 14.8 | 5.1 | 3.4 | 66 | 93 |
| 2026-11-01 | 16.1 | 12.5 | 16.1 | 12.5 | 6 | 6.6 | 64 | 80 |
| 2026-11-02 | 19 | 11.6 | 19 | 13.2 | — | 4.8 | 51 | 37 |
| 2026-11-03 | 23.8 | 11.2 | 23.8 | 15.4 | 5.1 | 7.1 | 38 | 100 |
| 2026-11-04 | 17.9 | 12.8 | 17.9 | 12.8 | 1.7 | 6.7 | 67 | 100 |
| 2026-11-05 | 14 | 10.8 | 14 | 10.8 | 3.2 | 8.5 | 53 | 93 |
| 2026-11-06 | 14.8 | 9.9 | 14.8 | 10.7 | 3.4 | 7.4 | 56 | 87 |
UV index by day · Melbourne
City data.
SPF 30-50, hat and sunglasses are a must. Better to stay in the shade 11:00-15:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Melbourne · October 22, 2026: UV index: 7.8 .
| Indicator | 2026-10-22 | 2026-10-23 | 2026-10-24 | 2026-10-25 | 2026-10-26 | 2026-10-27 | 2026-10-28 | 2026-10-29 | 2026-10-30 | 2026-10-31 | 2026-11-01 | 2026-11-02 | 2026-11-03 | 2026-11-04 | 2026-11-05 | 2026-11-06 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 7.8 | 7.8 | 7.4 | 4.1 | 7.8 | 5.3 | 3.9 | 4.9 | 8 | 8 | 8 | 7 | 8.1 | 8.2 | 8 | — |
AIR QUALITY QUESTIONS
Melbourne · air pollution - questions and answers
What do the latest air quality data show for Melbourne?
Melbourne - latest available concentrations (October 23, 2026, 12:00 local time): PM2.5: 6.6 µg/m³, PM10: 9.2 µg/m³, O₃: 73 µg/m³, NO₂: 2.3 µg/m³, SO₂: 2.5 µg/m³, CO: 81 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Melbourne over the past week?
The highest available daily mean PM2.5 was 10.7 µg/m³ (October 22, 2026). This comparison covers 7 days with data in the seven days before October 23, 2026. The day of the latest reading is excluded because it may be incomplete.
Is the PM2.5 concentration for Melbourne an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Melbourne?
For October 22, 2026, the forecast UV index is 7.8. The UV section also shows the following available days.
What wind speed is forecast for Melbourne?
For October 21, 2026, forecast wind speed is 13.8 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.