4 µg/m³ Low
Perth air quality now
Australia · The summary is refreshed every 15 minutes.
Perth, November 12, 2026: daily mean PM2.5 12 µg/m³ (4 sensors), level “Moderate” — as in the Atmy Data Hub. Now (12:15 local time): 4.4 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON
Right now in Perth, PM2.5 averages 4.4 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 4 sensors from AirGradient, Sensor.Community, readings from 12:02–12:12 local time (04:02–04:12 UTC), summary prepared at 12:15 local time. Median: 4.4 µg/m³; range across sensors: 1.7–7.3 µg/m³.
Perth: air quality for the completed day
12 µg/m³ Moderate
Daily mean PM2.5 on November 12, 2026 (00:00–24:00 UTC = 08:00–08:00 UTC+8): 12 µg/m³ from 4 sensors that passed the quality check — the same value as in the Atmy Data Hub.
LowModerateElevatedHighVery highExtremely high
Air Quality in Australia for the Completed Day
Perth: PM2.5 by month
Mean
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
This month
4
-
-
-
-
-
7
6
5
3
-
1
-
-
Monthly means of quality-checked sensors, as in the Data Hub trend; the current month is still incomplete, “-” means no data.
Where in Perth is the air worse?
See all sensors
Highest current reading: 7.3 µg/m³ (Hazelmere). Lowest: 1.7 µg/m³ (CalaisRd). The list shows every sensor, highest first.
- Good
- Moderate
- Unhealthy for sensitive groups
- Unhealthy
- Very unhealthy
- Hazardous
Source: atmy.ai monitoring network
Who provides the data
Sensors in the summary by network: AirGradient — 3 sensors, Sensor.Community — 1 sensor.
Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.
Australia: sensors in total
18
SydneyAustralia
9PerthAustralia
4AdelaideAustralia
1
Cities with the most sensors
All sensors on the map, by city as the map assigns them; the city’s values count only the sensors that pass the Data Hub’s quality check.
Air quality calendar: Perth
Daily mean PM2.5 of the city sensors, µg/m³
Click a day to see its date and value.
LowModerateElevatedHighVery highExtremely high
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Australia · City ranking · All pilot cities
Questions
What was the air quality in Perth over the last completed day?
Daily mean PM2.5 on November 12, 2026 (00:00–24:00 UTC = 08:00–08:00 UTC+8): 12 µg/m³ from 4 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 1 of 2 cities in Australia and No. 441 of 682 worldwide, from the most polluted.
What is the air quality in Perth right now?
Right now in Perth, PM2.5 averages 4.4 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 4 sensors from AirGradient, Sensor.Community, readings from 12:02–12:12 local time (04:02–04:12 UTC), summary prepared at 12:15 local time. Median: 4.4 µg/m³; range across sensors: 1.7–7.3 µg/m³.
Is it safe to be outdoors in Perth now?
The current level is “good” (US EPA scale, approximate). Air quality is satisfactory; no restrictions are recommended. This is the standard guidance of the scale, not medical advice.
Where in Perth is the air worse?
Highest current reading: 7.3 µg/m³ (Hazelmere). Lowest: 1.7 µg/m³ (CalaisRd). The list shows every sensor, highest first.
Where do these data come from?
From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.
How often is this page updated?
The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.
Data
Where do these data come from?
The daily value is the Data Hub’s: the mean of the city’s sensors that passed the nightly quality check, each with at least 12 valid hours, and only with sensors at four places 500 m apart; days are UTC.
“Now” uses the same sensors and rule: the mean of their latest readings, each at most 60 minutes old, shown only with sensors at four places 500 m apart reporting.
Source: public Atmy monitoring data. Methodology and data sources · Data terms