City report · Los Lagos Region, Chile
Puerto Montt Air quality today
Air quality in Puerto Montt currently reads AQI 29 (Good): Air quality is satisfactory for everyone.
AQI 29
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.8
- tree cover
- 16.3%
- trees in this area
- 39.5K
- more trees needed
- 33.2K
Measured across a 2 km radius around Puerto Montt, Los Lagos, Chile (12.57 km²), from a satellite image of Mar 10, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Puerto Montt · AQI 29 (Good)
Puerto Montt's tree count comes to 39,533 trees across 9.7 km² of land, 14 points below the 30% tree-cover level considered healthy for this area, so roughly 33,227 more trees would close the gap.
Air quality detail
Air quality in Puerto Montt today: AQI 29, Good
Main pollutant: PM2.5 · Observed Nov 10, 16:00 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
5.8
PM10
8.4
NO₂
1.2
O₃
62.0
SO₂
1.1
CO
96.0
- 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 Puerto Montt's daily AQI at 23 on average, from 9 on Nov 6 to an hourly peak of 51 on Nov 4.
Where Puerto Montt stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Puerto Montt: Critically low
16.3% tree cover against a 30% healthy-neighborhood target, across 9.7 km² of land.
Trees in this area
39,533
Target trees
72,760
More trees needed
33,227
CO₂ if planted / yr
731.0 t
Deforestation · 2001–2025
How much forest has Puerto Montt lost?
Since 2001, the area within 10 km of Puerto Montt has lost about 2,040 hectares of forest (about 2,900 football pitches): 18% of the forest it had in 2000. The biggest cause was towns and roads (43%). About 987 hectares (48%) was deforestation: forest cleared for good for farms, mines or towns.

2017: satellite photo from February 2017 of a 5 × 5 km area about 6 km northeast of the city center.
- Forest lost since 2001
- 2,040 haabout 2,900 football pitches
- Share of its forest
- 18%of what there was in 2000
- Cleared for good
- 987 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 143 hectares a year in 2021–2025, up from 93 hectares a year in 2016–2020. The worst year was 2022, when about 215 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 | 7 ha | 2 ha | 9 ha |
| 2002 | 3 ha | under 1 ha | 3 ha |
| 2003 | 12 ha | 6 ha | 18 ha |
| 2004 | 18 ha | 6 ha | 24 ha |
| 2005 | 37 ha | 50 ha | 87 ha |
| 2006 | 13 ha | 12 ha | 25 ha |
| 2007 | 45 ha | 24 ha | 70 ha |
| 2008 | 41 ha | 108 ha | 148 ha |
| 2009 | 9 ha | 70 ha | 79 ha |
| 2010 | 14 ha | 18 ha | 32 ha |
| 2011 | 8 ha | 5 ha | 14 ha |
| 2012 | 20 ha | 13 ha | 32 ha |
| 2013 | 40 ha | 19 ha | 59 ha |
| 2014 | 22 ha | 33 ha | 55 ha |
| 2015 | 81 ha | 127 ha | 208 ha |
| 2016 | 78 ha | 52 ha | 129 ha |
| 2017 | 55 ha | 38 ha | 93 ha |
| 2018 | 50 ha | 41 ha | 91 ha |
| 2019 | 75 ha | 32 ha | 107 ha |
| 2020 | 31 ha | 14 ha | 45 ha |
| 2021 | 63 ha | 36 ha | 100 ha |
| 2022 | 117 ha | 98 ha | 215 ha |
| 2023 | 56 ha | 40 ha | 96 ha |
| 2024 | 44 ha | 144 ha | 188 ha |
| 2025 | 48 ha | 68 ha | 116 ha |
What is causing deforestation around Puerto Montt?
- Towns and roadscleared for good43% · 883 ha
- Loggingcan grow back23% · 461 ha
- Wildfirescan grow back18% · 364 ha
Also: storms, floods and other natural causes, farms, pasture and plantations, mining and energy, unknown causes.
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
- 7,280 ha
- Forest in 2020
- 7,370 ha
- Overall change
- +94 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Puerto Montt stayed about the same size, at about 7,370 hectares: new forest grew on about 802 hectares, and about 708 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 Puerto Montt
Same 2 km radius, same index — so they compare directly.
- Osorno100.8 km
Chile
- Tree cover
- 27%
- Air quality
- 44
- Valdivia185.8 km
Chile
- Tree cover
- 26%
- Air quality
- 42
- Temuco305.3 km
Chile
- Tree cover
- 26%
- Air quality
- 48
- Los Ángeles447.6 km
Chile
- Tree cover
- 15%
- Air quality
- 58
- Villa Mercedes459.5 km
Chile
- Tree cover
- 33%
- Air quality
- 29
- Coronel493.5 km
Chile
- Tree cover
- 36%
- Air quality
- 44
Also compared:Puerto Montt vs SantiagoPuerto Montt vs AntofagastaPuerto Montt vs Viña del MarPuerto Montt vs Arica
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Frequently asked
Questions about Puerto Montt
What is the air quality (AQI) in Puerto Montt right now?
The latest reading for Puerto Montt shows an AQI of 29 (Good), observed Nov 10, 16:00 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 Puerto Montt today?
At AQI 29 (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 Puerto Montt been like this week?
Over the last 7 days, the CAMS air-quality model put Puerto Montt's daily AQI at 23 on average, from 9 on Nov 6 to an hourly peak of 51 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 Puerto Montt lost since 2001?
Since 2001, the area within 10 km of Puerto Montt has lost about 2,040 hectares of forest (about 2,900 football pitches): 18% of the forest it had in 2000. The biggest cause was towns and roads (43%). About 987 hectares (48%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is speeding up: about 143 hectares a year in 2021–2025, up from 93 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Puerto Montt stayed about the same size, at about 7,370 hectares: new forest grew on about 802 hectares, and about 708 hectares were lost.
What is the tree count in Puerto Montt?
Puerto Montt has an estimated 39,533 trees across the 9.7 km² of land measured — 16.3% tree cover, 14 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Puerto Montt need?
Puerto Montt needs roughly 33,227 more trees to close a 14-point shortfall against its 30% tree-cover target — about 731.0 t of extra CO₂ absorbed per year once grown.
How are Puerto Montt'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 Puerto Montt; the tree count is an estimate derived from that cover.
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