City report · New Caledonia
Nouméa Air quality today
Air quality in Nouméa currently reads AQI 38 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 38
Good
- PM2.5, fine particles (µg/m³)
- 7.4
- tree cover
- 27.3%
- trees in this area
- 67.7K
- more trees needed
- 6.7K
Measured across a 2 km radius around Quartier Latin, Nouméa 98800, New Caledonia (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nouméa · AQI 38 (Good)
Nouméa's tree count comes to 67,669 trees across 9.92 km² of land, 3 points below the 30% tree-cover level considered healthy for this area, so roughly 6,693 more trees would close the gap.
Air quality detail
Air quality in Nouméa today: AQI 38, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 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
7.4
PM10
10.9
NO₂
0.7
O₃
54.0
SO₂
4.1
CO
88.0
- 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 Nouméa's daily AQI at 33 on average, from 27 on Nov 6 to an hourly peak of 57 on Nov 7.
Where Nouméa stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nouméa: Below target
27.3% tree cover against a 30% healthy-neighborhood target, across 9.92 km² of land.
Trees in this area
67,669
Target trees
74,362
More trees needed
6,693
CO₂ if planted / yr
147.2 t
Deforestation · 2001–2025
How much forest has Nouméa lost?
Since 2001, the area within 10 km of Nouméa has lost about 212 hectares of forest (about 300 football pitches): 7.8% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 212 haabout 300 football pitches
- Share of its forest
- 7.8%of what there was in 2000
- Cleared for good
- 201 hadeforestation: turned into farms, mines or towns
The worst year was 2002, when about 36 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 19 ha | under 1 ha | 19 ha |
| 2002 | 35 ha | 2 ha | 36 ha |
| 2003 | 2 ha | under 1 ha | 3 ha |
| 2004 | 30 ha | under 1 ha | 30 ha |
| 2005 | 3 ha | under 1 ha | 3 ha |
| 2006 | 12 ha | under 1 ha | 13 ha |
| 2007 | 8 ha | under 1 ha | 8 ha |
| 2008 | 16 ha | under 1 ha | 16 ha |
| 2009 | 29 ha | under 1 ha | 29 ha |
| 2010 | 5 ha | under 1 ha | 5 ha |
| 2011 | 3 ha | under 1 ha | 3 ha |
| 2012 | 3 ha | under 1 ha | 4 ha |
| 2013 | 5 ha | under 1 ha | 5 ha |
| 2014 | 9 ha | 1 ha | 10 ha |
| 2015 | 3 ha | under 1 ha | 4 ha |
| 2016 | under 1 ha | 1 ha | 2 ha |
| 2017 | 7 ha | under 1 ha | 7 ha |
| 2018 | 4 ha | under 1 ha | 4 ha |
| 2019 | 3 ha | under 1 ha | 3 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 4 ha | under 1 ha | 5 ha |
| 2024 | 2 ha | 1 ha | 3 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Nouméa?
- Towns and roadscleared for good95% · 201 ha
- Storms, floods and other natural causescan grow back1.9% · 4 ha
- Unknown causescause unknown2.8% · 6 ha
Also: wildfires.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 3,410 ha
- Forest in 2020
- 3,290 ha
- Overall change
- −122 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nouméa shrank from about 3,410 hectares to 3,290 hectares, a net loss of about 122 hectares (−3.6%). New forest grew on about 19 hectares, but 141 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
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. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Nouméa
Same 2 km radius, same index — so they compare directly.
- Port-Vila540.9 km
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- Tree cover
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- Air quality
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- Kingston769.1 km
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- Air quality
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- Sigatoka1241.5 km
Fiji
- Tree cover
- 73%
- Air quality
- 32
- Lautoka1260.6 km
Fiji
- Tree cover
- 31%
- Air quality
- 42
- Suva1331.1 km
Fiji
- Tree cover
- 44%
- Air quality
- 14
- Sunshine Coast1437.2 km
Australia
- Tree cover
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- Air quality
- 29
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Frequently asked
Questions about Nouméa
What is the air quality (AQI) in Nouméa right now?
The latest reading for Nouméa shows an AQI of 38 (Good), observed Nov 11, 11:00 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 Nouméa today?
At AQI 38 (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 Nouméa been like this week?
Over the last 7 days, the CAMS air-quality model put Nouméa's daily AQI at 33 on average, from 27 on Nov 6 to an hourly peak of 57 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Nouméa lost since 2001?
Since 2001, the area within 10 km of Nouméa has lost about 212 hectares of forest (about 300 football pitches): 7.8% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Nouméa shrank from about 3,410 hectares to 3,290 hectares, a net loss of about 122 hectares (−3.6%). New forest grew on about 19 hectares, but 141 hectares were lost.
What is the tree count in Nouméa?
Nouméa has an estimated 67,669 trees across the 9.92 km² of land measured — 27.3% tree cover, 3 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nouméa need?
Nouméa needs roughly 6,693 more trees to close a 3-point shortfall against its 30% tree-cover target — about 147.2 t of extra CO₂ absorbed per year once grown.
How are Nouméa'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 Quartier Latin; the tree count is an estimate derived from that cover.
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