Answer
• Air quality can vary significantly, particularly during the Burning Season from February to April.
• During this period, smoke from agricultural burning can lead to higher pollution levels; consider wearing a mask if you are sensitive.
• Check local air quality forecasts regularly to plan your outdoor activities accordingly.
• Staying indoors during high pollution days and engaging in indoor attractions is advisable.
• Ensure you have access to clean drinking water and stay hydrated, as poor air quality can affect health.
Practical Chiang Mai planning note: For weather and air quality, check a current forecast and a live air-quality source shortly before the activity. Northern Thailand can experience strong seasonal variation, and conditions differ between the city, foothills and higher mountains.