Phuket Air Quality: Station Readings, AQI Bands, Haze Days

Phuket's official PM2.5 station averaged 13.5 micrograms per cubic metre on 21 October 2026, inside the Excellent range. The weather station logs the most haze from January to April, up to 6.5 days a month in March. Phuket has no published PM2.5 record for those months yet.

By Vincent Nguyen and team

If you are planning around the burning season, the weather station’s record is your clearest guide. Haze peaks from January to April, with 4.9, 5.2, 6.5 and 3.8 haze days a month. It returns in December with 4.8, then drops to between 0.3 and 0.8 days a month from May to September.

These are days the station recorded haze, not PM2.5 readings, so they show when haze is likely rather than how polluted the air was.

For month-by-month rain and heat, see Phuket weather by month and the rainy season guide.

What the Phuket air station reads

Phuket’s Pollution Control Department station is at the Municipal Health Center in Talat Yai, Mueang Phuket. On 21 October 2026 its readings averaged 13.5 micrograms per cubic metre, with a highest hour of 18.7. That is one day, not a seasonal average.

The station’s hourly readings since August 2026:

Both averages sit below 15.0, the top of the Excellent PM2.5 range. Hourly readings are not the 24-hour averages the bands use. The history feed returns no PM2.5 readings for Phuket for 1 February to 31 March 2026.

Thai AQI bands and PM2.5 limits

An AQI of 100 equals the general air quality standard. Above 100, the air begins to affect public health. For PM2.5, 100 is 37.5 micrograms per cubic metre as a 24-hour average.

What to do at each band

The official advice changes with each band. Check the station’s live reading on Air4Thai, find its band in the table above, then follow the matching line below. The wording comes from the Pollution Control Department’s own table.

• Excellent: everyone can live their life normally.
• Satisfactory: the general public can do outdoor activities normally; people who need special health care should watch for frequent coughing or difficulty breathing.
• Moderate: the general public should reduce strenuous outdoor activity; people who need special health care should wear a PM2.5 mask every time they go out.
• Unhealthy: the general public should wear a PM2.5 mask every time they go out and limit strenuous outdoor activity. People who need special health care should avoid energetic outdoor exercise.
• Very Unhealthy: everyone should avoid outdoor activities and wear a PM2.5 mask every time they go out. People with a congenital disease should stay in an area safe from air pollution, with medicines and equipment ready, and follow their doctor’s advice.

Next in this journey: English-speaking hospitals in Phuket, hospital costs and health insurance for expats.

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Not confirmed: How far January to April haze pushes Phuket's PM2.5 above 37.5 micrograms per cubic metre is not published. The station's history feed returns no readings for 1 February to 31 March 2026. Check the live Air4Thai reading before planning outdoor exercise in those months.

General information checked against the sources listed above, not legal advice for your situation. Rules and office practice change; confirm with the immigration office or a licensed adviser before you act. See how guides are checked.

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