Dramatic cloud formations are reflected in the water - a symbolic image for air quality and weather in Thailand this weekend 08-2025.

Thailand: Air quality and weather – Monday to Friday – week 04-2025

2025-01-19

Air quality and weather conditions in Thailand will vary over the coming week. Chiang Rai is showing a mix of improvement and occasional deterioration in air quality, while Bangkok continues to experience high levels of PM2.5. In Phuket, the air remains stable and good, but showers are possible.

Compared to last week (week 03), we see some stabilization of temperatures in Chiang Rai and Bangkok, while Phuket experiences an increase in humidity and rainfall. However, air quality in Bangkok has deteriorated further, with higher AQI levels mid-week.

Chiang Rai: Stable air quality with some deterioration

  • Monday, January 22: AQI 97 – Moderate air quality, highest temperature 29°C, lowest 13°C.
  • Tuesday, January 23: AQI 99 – Moderate air quality, highest temperature 30°C, lowest 13°C.
  • Wednesday, January 24: AQI 98 – Moderate air quality, highest temperature 30°C, lowest 13°C.
  • Thursday, January 25: AQI 87 – Moderate air quality, highest temperature 31°C, lowest 14°C.
  • Friday, January 26: AQI 92 – Moderate air quality, highest temperature 32°C, lowest 14°C.

Change from last week: The temperature is stable but slightly higher towards the end of the week. Air quality shows moderate variations with some improvement on Thursday.

Bangkok: Air quality continues to deteriorate

  • Monday, January 22: AQI 102 – Unhealthy for sensitive groups, highest temperature 32°C, lowest 22°C.
  • Tuesday, January 23: AQI 108 – Unhealthy for sensitive groups, highest temperature 33°C, lowest 23°C.
  • Wednesday, January 24: AQI 118 – Unhealthy for sensitive groups, highest temperature 33°C, lowest 24°C.
  • Thursday, January 25: AQI 110 – Unhealthy for sensitive groups, highest temperature 33°C, lowest 23°C.
  • Friday, January 26: AQI 107 – Unhealthy for sensitive groups, highest temperature 33°C, lowest 24°C.

Change from last week: Air quality has deteriorated further with higher AQI levels midweek. Temperatures are stable but still high.

Phuket: Stable air and rainy weather

  • Monday, January 22: AQI 71 – Moderate air quality, highest temperature 29°C, lowest 25°C.
  • Tuesday, January 23: AQI 61 – Moderate air quality, highest temperature 29°C, lowest 25°C.
  • Wednesday, January 24: AQI 62 – Moderate air quality, highest temperature 28°C, lowest 24°C.
  • Thursday, January 25: AQI 62 – Moderate air quality, highest temperature 29°C, lowest 25°C.
  • Friday, January 26: AQI 69 – Moderate air quality, highest temperature 29°C, lowest 26°C.

Change from last week: Air quality is stable and remains good. Temperatures are slightly lower, but humidity is higher with increased rain showers.

Summary and recommendations

  • Chiang Rai: Air quality is moderate, with some deterioration during the week. Residents should exercise caution and minimize outdoor physical activity.
  • Bangkok: Air pollution continues to rise. Sensitive groups are advised to avoid being outdoors and use air purifiers.
  • Phuket: Air quality remains good, but rain may cause temporary changes. Prepare umbrellas and rain gear.

Source: Air quality data is taken from IQ Air.

Stay informed and protect your health.


Text: The editorial staff

Image license: jplenio, Pixabay, original image