Thailand: Air quality and weather – Monday to Friday – week 13-2025

After a short break in week 12, we return with an updated weather and air quality forecast for week 13. This week, a sharp deterioration in air quality is noted in Chiang Rai and Bangkok, while Phuket shows stable temperatures and moderate air quality. Temperatures remain very high in northern Thailand.

Chiang Rai: High temperatures and poor air quality

• Monday, March 24: AQI 120 – Unhealthy for sensitive groups, highest temperature 38°C, lowest 21°C. Sunny.
• Tuesday, March 25: AQI 104 – Unhealthy for sensitive groups, highest temperature 38°C, lowest 22°C. Sunny.
• Wednesday March 26: AQI 98 – Moderate air quality, highest temperature 38°C, lowest 21°C. Overcast.
• Thursday, March 27: AQI 99 – Moderate air quality, high temperature 38°C, low 21°C. Partly cloudy.
• Friday March 28: AQI 113 – Unhealthy for sensitive groups, highest temperature 39°C, lowest 21°C. Overcast.

Change from week 11: Air quality has deteriorated significantly and temperatures remain very high.

Bangkok: Severe air pollution at the beginning of the week

• Monday, March 24: AQI 140 – Unhealthy, highest temperature 35°C, lowest 27°C. Sunny.
• Tuesday, March 25: AQI 105 – Unhealthy for sensitive groups, highest temperature 34°C, lowest 27°C. Cloudy.
• Wednesday March 26: AQI 99 – Moderate air quality, highest temperature 37°C, lowest 27°C. Overcast.
• Thursday, March 27: AQI 92 – Moderate air quality, highest temperature 37°C, lowest 27°C. Overcast.
• Friday March 28: AQI 89 – Moderate air quality, highest temperature 36°C, lowest 26°C. Overcast.

Change from week 11: Very high AQI values ​​at the beginning of the week but an improvement from Wednesday. Temperatures remain high.

Phuket: Stable with light rain and moderate air

• Monday, March 24: AQI 62 – Moderate air quality, highest temperature 29°C, lowest 26°C. Rain.
• Tuesday, March 25: AQI 70 – Moderate air quality, highest temperature 29°C, lowest 26°C. Overcast.
• Wednesday March 26: AQI 78 – Moderate air quality, highest temperature 29°C, lowest 27°C. Overcast.
• Thursday, March 27: AQI 78 – Moderate air quality, highest temperature 29°C, lowest 27°C. Overcast.
• Friday March 28: AQI 75 – Moderate air quality, highest temperature 29°C, lowest 27°C. Rain.

Change from week 11: Small changes in temperatures and AQI, continued unsettled weather.

Summary and recommendations

• Chiang Rai: Air quality is poor at the beginning and end of the week. High temperatures all week.
• Bangkok: Severe air pollution during Monday and Tuesday. Better air later in the week.
• Phuket: Stable temperature with rain. Air quality is at a moderate level.

Follow our weekly weather forecasts to stay up to date on air quality and temperature changes in Thailand.

What does AQI mean?

AQI (Air Quality Index) is an index that shows how healthy or unhealthy the air is. The higher the value, the worse the air quality. Values ​​above 100 affect sensitive groups, while levels above 150 can be harmful to everyone.

Source: Air quality data is taken from IQ Air.

Stay informed and protect your health.

Text: The editorial staff

Image license: Ian5152, Pixabay, original image