City report · Thailand
Hat Yai Air quality today
Air quality in Hat Yai currently reads AQI 14 (Good): Air quality is satisfactory for everyone.
AQI 14
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 2.6
- tree cover
- 15.0%
- trees in this area
- 47.1K
- more trees needed
- 47.1K
Measured across a 2 km radius around Hat Yai, Hat Yai District, Songkhla 90110, Thailand (12.57 km²), from a satellite image of Aug 3, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hat Yai · AQI 14 (Good)
Hat Yai's tree count comes to 47,124 trees across 12.57 km², 15 points below the 30% tree-cover level considered healthy for this area, so roughly 47,124 more trees would close the gap.
Air quality detail
Air quality in Hat Yai today: AQI 14, Good
Main pollutant: PM2.5 · Observed Nov 10, 19:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 165 km, e.g. Alor Setar and Kota Kuala Muda
Health signal
Air quality is satisfactory for everyone.
PM2.5
2.6
PM10
5.1
NO₂
4.7
O₃
62.0
SO₂
1.4
CO
452.0
- 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 Hat Yai's daily AQI at 23 on average, from 17 on Nov 9 to an hourly peak of 44 on Nov 5.
Where Hat Yai stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hat Yai: Critically low
15.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
47,124
Target trees
94,248
More trees needed
47,124
CO₂ if planted / yr
1,037 t
Deforestation · 2001–2025
How much forest has Hat Yai lost?
Since 2001, the area within 10 km of Hat Yai has lost about 4,770 hectares of forest (about 6,700 football pitches): 41% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from April 2017 of a 5 × 5 km area about 7 km southeast of the city center.
- Forest lost since 2001
- 4,770 haabout 6,700 football pitches
- Share of its forest
- 41%of what there was in 2000
- Cleared for good
- 4,760 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 201 hectares a year in 2021–2025, down from 280 hectares a year in 2016–2020. The worst year was 2017, when about 409 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 | 38 ha | under 1 ha | 38 ha |
| 2002 | 178 ha | under 1 ha | 178 ha |
| 2003 | 65 ha | 2 ha | 67 ha |
| 2004 | 58 ha | under 1 ha | 58 ha |
| 2005 | 213 ha | 1 ha | 214 ha |
| 2006 | 169 ha | 4 ha | 173 ha |
| 2007 | 143 ha | 1 ha | 144 ha |
| 2008 | 215 ha | 2 ha | 217 ha |
| 2009 | 194 ha | under 1 ha | 194 ha |
| 2010 | 239 ha | under 1 ha | 239 ha |
| 2011 | 186 ha | under 1 ha | 186 ha |
| 2012 | 108 ha | under 1 ha | 108 ha |
| 2013 | 95 ha | under 1 ha | 96 ha |
| 2014 | 214 ha | under 1 ha | 214 ha |
| 2015 | 237 ha | under 1 ha | 237 ha |
| 2016 | 236 ha | under 1 ha | 236 ha |
| 2017 | 409 ha | under 1 ha | 409 ha |
| 2018 | 290 ha | under 1 ha | 290 ha |
| 2019 | 209 ha | under 1 ha | 209 ha |
| 2020 | 257 ha | under 1 ha | 257 ha |
| 2021 | 173 ha | under 1 ha | 173 ha |
| 2022 | 127 ha | under 1 ha | 127 ha |
| 2023 | 196 ha | under 1 ha | 196 ha |
| 2024 | 282 ha | under 1 ha | 282 ha |
| 2025 | 227 ha | under 1 ha | 227 ha |
What is causing deforestation around Hat Yai?
- Farms, pasture and plantationscleared for good82% · 3,930 ha
- Towns and roadscleared for good17% · 831 ha
Also: shifting farming, 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
- 14,900 ha
- Forest in 2020
- 13,200 ha
- Overall change
- −1,660 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hat Yai shrank from about 14,900 hectares to 13,200 hectares, a net loss of about 1,660 hectares (−11%). New forest grew on about 1,100 hectares, but 2,760 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 Hat Yai
Same 2 km radius, same index — so they compare directly.
- Alor Setar99.5 km
Malaysia
- Tree cover
- 24%
- Air quality
- 32
- Sungai Petani151.4 km
Malaysia
- Tree cover
- 29%
- Air quality
- 59
- Kota Kuala Muda158.4 km
Malaysia
- Tree cover
- 29%
- Air quality
- 54
- Nakhon Si Thammarat168.1 km
Thailand
- Tree cover
- 29%
- Air quality
- 19
- Tasek Glugor169.9 km
Malaysia
- Tree cover
- 58%
- Air quality
- 40
- Butterworth179.4 km
Malaysia
- Tree cover
- 21%
- Air quality
- 27
Also compared:Hat Yai vs BangkokHat Yai vs Chon BuriHat Yai vs LatkrabangHat Yai vs Lampang
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Frequently asked
Questions about Hat Yai
What is the air quality (AQI) in Hat Yai right now?
The latest reading for Hat Yai shows an AQI of 14 (Good), observed Nov 10, 19:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hat Yai today?
At AQI 14 (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 Hat Yai been like this week?
Over the last 7 days, the CAMS air-quality model put Hat Yai's daily AQI at 23 on average, from 17 on Nov 9 to an hourly peak of 44 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Hat Yai lost since 2001?
Since 2001, the area within 10 km of Hat Yai has lost about 4,770 hectares of forest (about 6,700 football pitches): 41% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 201 hectares a year in 2021–2025, down from 280 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Hat Yai shrank from about 14,900 hectares to 13,200 hectares, a net loss of about 1,660 hectares (−11%). New forest grew on about 1,100 hectares, but 2,760 hectares were lost.
What is the tree count in Hat Yai?
Hat Yai has an estimated 47,124 trees across the 12.57 km² measured — 15.0% tree cover, 15 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hat Yai need?
Hat Yai needs roughly 47,124 more trees to close a 15-point shortfall against its 30% tree-cover target — about 1,037 t of extra CO₂ absorbed per year once grown.
How are Hat Yai'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 Hat Yai; the tree count is an estimate derived from that cover.
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