City report · Monaco
Monaco Air quality today
Air quality in Monaco currently reads AQI 65 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 65
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 16.5
- tree cover
- 41.6%
- trees in this area
- 83.0K
- more trees needed
- 0
Measured across a 2 km radius around Ravin de Sainte-Dévote, 98000 Monaco (12.57 km²), from a satellite image of Sep 19, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Monaco · AQI 65 (Moderate)
Monaco's tree count comes to 82,988 trees across 7.98 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Monaco today: AQI 65, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · PEILLON, 6.7 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
16.5
PM10
24.0
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · EEA
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Monaco's daily AQI at 31 on average, from 13 on Nov 5 to an hourly peak of 54 on Nov 10.
Where Monaco stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Monaco: Healthy tree cover
41.6% tree cover against a 30% healthy-neighborhood target, across 7.98 km² of land.
Trees in this area
82,988
Target trees
82,988
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Monaco lost?
Since 2001, the area within 10 km of Monaco has lost about 207 hectares of forest (about 290 football pitches): 3.4% of the forest it had in 2000. Most of it (58%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 207 haabout 290 football pitches
- Share of its forest
- 3.4%of what there was in 2000
- Cleared for good
- 119 hadeforestation: turned into farms, mines or towns
The worst year was 2004, when about 45 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 1 ha | under 1 ha | 2 ha |
| 2002 | 5 ha | under 1 ha | 6 ha |
| 2003 | 4 ha | under 1 ha | 4 ha |
| 2004 | 12 ha | 32 ha | 45 ha |
| 2005 | 4 ha | under 1 ha | 4 ha |
| 2006 | 9 ha | 4 ha | 13 ha |
| 2007 | 6 ha | 1 ha | 7 ha |
| 2008 | 8 ha | 4 ha | 11 ha |
| 2009 | 3 ha | 2 ha | 5 ha |
| 2010 | 4 ha | 1 ha | 6 ha |
| 2011 | 10 ha | under 1 ha | 10 ha |
| 2012 | 2 ha | under 1 ha | 3 ha |
| 2013 | 1 ha | under 1 ha | 2 ha |
| 2014 | 3 ha | 1 ha | 4 ha |
| 2015 | 1 ha | 4 ha | 5 ha |
| 2016 | 3 ha | 10 ha | 13 ha |
| 2017 | 6 ha | 6 ha | 12 ha |
| 2018 | 3 ha | under 1 ha | 4 ha |
| 2019 | 4 ha | 14 ha | 18 ha |
| 2020 | 2 ha | under 1 ha | 3 ha |
| 2021 | 8 ha | under 1 ha | 8 ha |
| 2022 | 10 ha | 2 ha | 12 ha |
| 2023 | 3 ha | under 1 ha | 3 ha |
| 2024 | 4 ha | under 1 ha | 5 ha |
| 2025 | 1 ha | 3 ha | 4 ha |
What is causing deforestation around Monaco?
- Towns and roadscleared for good44% · 91 ha
- Wildfirescan grow back27% · 55 ha
- Loggingcan grow back12% · 25 ha
Also: mining and energy, farms, pasture and plantations, storms, floods and other natural causes, 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
- 9,440 ha
- Forest in 2020
- 9,450 ha
- Overall change
- +13 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Monaco stayed about the same size, at about 9,450 hectares: new forest grew on about 98 hectares, and about 85 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
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Frequently asked
Questions about Monaco
What is the air quality (AQI) in Monaco right now?
The latest reading for Monaco shows an AQI of 65 (Moderate), measured Nov 11, 16:00 local time by the PEILLON ground monitoring station, 6.7 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Monaco today?
At AQI 65 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Monaco been like this week?
Over the last 7 days, the CAMS air-quality model put Monaco's daily AQI at 31 on average, from 13 on Nov 5 to an hourly peak of 54 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Monaco lost since 2001?
Since 2001, the area within 10 km of Monaco has lost about 207 hectares of forest (about 290 football pitches): 3.4% of the forest it had in 2000. Most of it (58%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Monaco stayed about the same size, at about 9,450 hectares: new forest grew on about 98 hectares, and about 85 hectares were lost.
What is the tree count in Monaco?
Monaco has an estimated 82,988 trees across the 7.98 km² of land measured — 41.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Monaco need?
Monaco has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Monaco's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Ravin de Sainte-Dévote, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Ravin de Sainte-Dévote; the tree count is an estimate derived from that cover.
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