City report · Cook Islands
Avarua Air quality today
Air quality in Avarua currently reads AQI 44 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 44
Good
- PM2.5, fine particles (µg/m³)
- 9.1
- tree cover
- 81.8%
- trees in this area
- 164K
- more trees needed
- 0
Measured across a 2 km radius around Avarua, Cook Islands (12.57 km²), from a satellite image of Aug 31, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Avarua · AQI 44 (Good)
Avarua's tree count comes to 163,955 trees across 8.02 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Avarua today: AQI 44, Good
Main pollutant: PM2.5 · Observed Nov 10, 13:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
9.1
PM10
16.1
NO₂
0.0
O₃
50.0
SO₂
0.2
CO
63.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Avarua's daily AQI at 45 on average, from 35 on Nov 8 to an hourly peak of 59 on Nov 4.
Where Avarua stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Avarua: Healthy tree cover
81.8% tree cover against a 30% healthy-neighborhood target, across 8.02 km² of land.
Trees in this area
163,955
Target trees
163,955
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Avarua lost?
There was almost no forest around Avarua in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
The forest-loss maps don't cover this area.
2020: satellite photo from June 2020 of a 5 × 5 km area in the city center.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Avarua
Same 2 km radius, same index — so they compare directly.
- Alofi1085.6 km
Niue
- Tree cover
- 90%
- Air quality
- 59
- Papeete1145.6 km
French Polynesia
- Tree cover
- 30%
- Air quality
- 27
- Apia1511.8 km
Samoa
- Tree cover
- 50%
- Air quality
- 40
- Nuku‘alofa1598.9 km
Tonga
- Tree cover
- 24%
- Air quality
- 58
- Mata-Utu1949.7 km
Wallis and Futuna
- Tree cover
- 80%
- Air quality
- 55
- Labasa2256.7 km
Fiji
- Tree cover
- 51%
- Air quality
- 32
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Frequently asked
Questions about Avarua
What is the air quality (AQI) in Avarua right now?
The latest reading for Avarua shows an AQI of 44 (Good), observed Nov 10, 13:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Avarua today?
At AQI 44 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Avarua been like this week?
Over the last 7 days, the CAMS air-quality model put Avarua's daily AQI at 45 on average, from 35 on Nov 8 to an hourly peak of 59 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Avarua lost since 2001?
There was almost no forest around Avarua in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
What is the tree count in Avarua?
Avarua has an estimated 163,955 trees across the 8.02 km² of land measured — 81.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Avarua need?
Avarua has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Avarua's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Avarua; the tree count is an estimate derived from that cover.
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