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City report · Thailand

Nakhon Si Thammarat Air quality today

Air quality in Nakhon Si Thammarat currently reads AQI 32 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 32

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
5.9
tree cover
29.0%
trees in this area
91.1K
more trees needed
3.1K

Measured across a 2 km radius around Khlang, Mueang Nakhon Si Thammarat District, Nakhon Si Thammarat 80000, Thailand (12.57 km²), from a satellite image of Aug 3, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Nakhon Si Thammarat · AQI 32 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Aug 3, 2026

Nakhon Si Thammarat's tree count comes to 91,106 trees across 12.57 km², 1 points below the 30% tree-cover level considered healthy for this area, so roughly 3,142 more trees would close the gap.

Air quality detail

Air quality in Nakhon Si Thammarat today: AQI 32, Good

Main pollutant: PM2.5 · Observed Nov 11, 10:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 185 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 2 station cities within 185 km, e.g. Mueang Surat Thani District and Hat Yai District

Health signal

Air quality is satisfactory for everyone.

PM2.5

5.9

PM10

4.7

NO₂

0.8

O₃

88.0

SO₂

1.0

CO

171.0

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 Nakhon Si Thammarat's daily AQI at 27 on average, from 17 on Nov 8 to an hourly peak of 53 on Nov 6.

Last 7 daysavg 27 · peak 53
Nov 5: AQI 28 (peak 40)Nov 6: AQI 40 (peak 53)Nov 7: AQI 19 (peak 52)Nov 8: AQI 17 (peak 27)Nov 9: AQI 21 (peak 26)Nov 10: AQI 41 (peak 53)Nov 11: AQI 24 (peak 45)
Nov 5Nov 11

Where Nakhon Si Thammarat stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Nakhon Si Thammarat: Below target

29.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².

1 points below target

Trees in this area

91,106

Target trees

94,248

More trees needed

3,142

CO₂ if planted / yr

69.1 t

Deforestation · 2001–2025

How much forest has Nakhon Si Thammarat lost?

Since 2001, the area within 10 km of Nakhon Si Thammarat has lost about 983 hectares of forest (about 1,400 football pitches): 14% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.

Satellite image of the area around Nakhon Si Thammarat, March 2019

2019: satellite photo from March 2019 of a 5 × 5 km area about 6 km southwest of the city center.

Forest lost since 2001
983 haabout 1,400 football pitches
Share of its forest
14%of what there was in 2000
Cleared for good
980 hadeforestation: turned into farms, mines or towns

The worst year was 2010, when about 106 hectares of forest were lost.

Forest lost each year around Nakhon Si Thammarat, 2001–2025

Hectares of forest lost each year

Forest lost each year around Nakhon Si Thammarat, 2001–2025. Use the left and right arrow keys to read each year.106

Show the figures as a table
Forest lost each year around Nakhon Si Thammarat, 2001–2025
YearCleared for goodCan grow backTotal
200112 haunder 1 ha12 ha
200215 haunder 1 ha15 ha
200315 haunder 1 ha15 ha
200415 haunder 1 ha15 ha
200514 haunder 1 ha14 ha
200650 haunder 1 ha50 ha
200716 haunder 1 ha16 ha
200867 haunder 1 ha67 ha
200933 haunder 1 ha33 ha
2010106 haunder 1 ha106 ha
201133 haunder 1 ha33 ha
201254 haunder 1 ha54 ha
201314 haunder 1 ha14 ha
201441 haunder 1 ha41 ha
201533 haunder 1 ha34 ha
201654 haunder 1 ha54 ha
201743 haunder 1 ha43 ha
201850 haunder 1 ha50 ha
201956 ha1 ha57 ha
202033 haunder 1 ha33 ha
202131 haunder 1 ha31 ha
202233 haunder 1 ha33 ha
202377 haunder 1 ha77 ha
202455 haunder 1 ha55 ha
202535 haunder 1 ha35 ha

What is causing deforestation around Nakhon Si Thammarat?

  • Farms, pasture and plantationscleared for good80% · 787 ha
  • Towns and roadscleared for good20% · 193 ha

Also: 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
9,480 ha
Forest in 2020
10,400 ha
Overall change
+922 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Nakhon Si Thammarat grew from about 9,480 hectares to 10,400 hectares, a net gain of about 922 hectares (+9.7%). New forest grew on about 1,550 hectares, while 629 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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Nakhon Si Thammarat air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Nakhon Si Thammarat

What is the air quality (AQI) in Nakhon Si Thammarat right now?

The latest reading for Nakhon Si Thammarat shows an AQI of 32 (Good), observed Nov 11, 10:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 185 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Nakhon Si Thammarat today?

At AQI 32 (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 Nakhon Si Thammarat been like this week?

Over the last 7 days, the CAMS air-quality model put Nakhon Si Thammarat's daily AQI at 27 on average, from 17 on Nov 8 to an hourly peak of 53 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Nakhon Si Thammarat lost since 2001?

Since 2001, the area within 10 km of Nakhon Si Thammarat has lost about 983 hectares of forest (about 1,400 football pitches): 14% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Nakhon Si Thammarat grew from about 9,480 hectares to 10,400 hectares, a net gain of about 922 hectares (+9.7%). New forest grew on about 1,550 hectares, while 629 hectares were lost.

What is the tree count in Nakhon Si Thammarat?

Nakhon Si Thammarat has an estimated 91,106 trees across the 12.57 km² measured — 29.0% tree cover, 1 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Nakhon Si Thammarat need?

Nakhon Si Thammarat needs roughly 3,142 more trees to close a 1-point shortfall against its 30% tree-cover target — about 69.1 t of extra CO₂ absorbed per year once grown.

How are Nakhon Si Thammarat'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 Khlang; the tree count is an estimate derived from that cover.

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