Answer
To truly enjoy Chiang Mai's climate no matter the season, it's essential to stay hydrated, especially during the hot months from March to May. Always carry a water bottle with you.
• Dress in layers! The evenings can be quite cool, particularly from November to February, so having a light jacket on hand will keep you comfortable during night strolls.
• Lastly, be mindful of the air quality, especially during the Burning Season. If you're sensitive to pollution, consider limiting outdoor activities on high pollution days.
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.