What is the air quality in Ko Samui today?

The current Air Quality Index (AQI) in Ko Samui is 61 (Moderate). PM2.5 concentration is 16.73 µg/m³.

What is the temperature in Ko Samui right now?

The current temperature in Ko Samui is 28.5°C (feels like 34.1°C). Humidity is 75.1% and wind speed is 128.0 km/h.

Air Quality in Ko Samui, Thailand

Windy

28.5°C · 75.1% humidity

28.5°

Feels 34.1°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

1 station

Nearby Monitoring Stations

AQI Forecast Calibrated

64 9pm

61 12am

64 3am

64 6am

63 9am

63 12pm

64 3pm

64 6pm

Station readings

CAMS model adj +39

Air Quality Index Trend

47h · 1 stn

View full history →

Ko Samui's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. The worst conditions typically occur from February to April during the regional burning season. Current PM2.5 concentration in Ko Samui is 1.1× the WHO 24-hour guideline of 15 µg/m³.

75.1%

Humidity

128.0 km/h

Wind W

1008.4 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

16.73 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Ko Samui?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.516.73 µg/m³ ×1.1 WHO

Moderate

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

16.73

Median

16.73

Average

16.73

Low

16.73

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -10.7

What is the 7-day forecast for Ko Samui?

07-21

29.5° 28.5°

0.31 mm

07-22

29.0° 27.4°

6.88 mm

07-23

29.4° 27.8°

3.81 mm

07-24

29.1° 28.0°

1.88 mm

07-25

30.2° 28.1°

1.06 mm

07-26

31.1° 28.9°

0.38 mm

07-27

30.6° 28.4°

3.44 mm

Both models agree Avg diff: 1.4°C

Where are air quality stations near Ko Samui?

Private Tropical Garden

6.8 km PM2.5: 16.4 µg/m³ PM10: 18.4 µg/m³

What cities are near Ko Samui?

48 Surat Thani 48 Tha Kham 24 Ban Na San 6 Lang Suan 31 Nakhon Si Thammarat 39 Pak Phanang 38 Chumphon 46 Ranong 72 Ron Phibun 89 Thung Song

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:17 UTC.