Understanding the two festivals

Loi Krathong and Yi Peng are related but distinct celebrations that overlap in the north of Thailand every November.

FestivalWhat happensLocationWhen
Loi KrathongFloating krathong (decorated banana-leaf baskets with candles and incense) down rivers, canals and water bodies as an offering and to release bad luck.Nationwide. Every town and city with water access celebrates. Bangkok (Chao Phraya), Sukhothai, Ayutthaya, and all northern cities.Full moon of the twelfth Thai lunar month, typically November. The exact 2026 date follows the lunar calendar.
Yi PengReleasing khom loi (floating sky lanterns) into the night sky. A northern Thai and Lanna tradition that creates one of the world's most spectacular mass light events.Chiang Mai is the center. Also celebrated in other northern provinces. Mass release events in Chiang Mai are the headline attraction.Overlaps with Loi Krathong, the full moon night and the night before or after. 2026 date follows the lunar calendar.
Verify 2026 dates before traveling

Both Loi Krathong and Yi Peng follow the lunar calendar and their dates shift each year on the Gregorian calendar. For 2026 exact dates, check the Tourism Authority of Thailand and Chiang Mai city sources closer to the festival season. The full moon determines the date, which typically falls in November but the specific calendar date changes annually.

Chiang Mai Yi Peng: what to expect

The Chiang Mai Yi Peng experience comes in two forms with very different atmospheres and connectivity situations.

Yi Peng formatAtmosphereCrowdNetwork
Mass release events
(commercial, ticketed)
Organized, photogenic, designed for the lantern release photo. Commercial operators run the main events with seating, music and coordinated launch.5,000 to 15,000 per event depending on operator. Dense within the event area.Congested at the launch moment. Plan on upload lag. Photos taken freely, posted after.
Street and neighborhood releases
(free, spontaneous)
Authentic, community-based, with local families releasing lanterns from their doorsteps and the river banks around the old city moat.Spread across the city. Lower density per square meter.Better than mass events. Normal coverage in residential areas.
Moat road walking
(free public space)
Walking along the old city moat watching lanterns fill the sky. Popular with visitors and Thais alike.High but spread along several kilometers of moat road.Moderate congestion in the densest sections near the main moat corners. Better on the quieter stretches.
The sky lantern safety and legal context

Sky lantern releases in Chiang Mai are regulated. They are prohibited during flight restriction periods because Chiang Mai International Airport's flight paths cross the city. Commercial mass release events operate with permits and during flight restriction windows. Individuals releasing lanterns in non-permitted zones during flight periods risk significant fines. The commercial events handle this correctly. Spontaneous individual releases in the wrong zone and time are where the legal risk lies. Follow local guidance on when and where individual lanterns can be released.

Bangkok Loi Krathong: the river experience

Bangkok celebrates Loi Krathong primarily along the Chao Phraya River. The scale is different from Chiang Mai: less about sky lanterns, more about the river ritual and the riverside celebration atmosphere.

  • The prime Bangkok viewing areas for floating krathong are Asiatique the Riverfront, Rattanakosin Island (the old city area near Sanam Luang), and the riverside in front of the Grand Palace.
  • Network congestion at Bangkok river spots is moderate. The crowds are large but spread across a much longer riverside than Chiang Mai's compact moat area.
  • The 5G coverage along the Chao Phraya riverside is stronger than Chiang Mai's moat road. Bangkok's dense 5G infrastructure handles the Loi Krathong crowd better than the northern coverage can handle Yi Peng.
  • Purchasing krathong at the riverside markets is cash-based. Have Thai baht ready. Krathong cost 20 to 100 THB depending on size and quality.

The photography and connectivity strategy

Loi Krathong and Yi Peng are designed to be photographed. The challenge is that the moment that looks best on camera, thousands of lanterns launching simultaneously, is also the moment when thousands of cameras are trying to upload simultaneously.

  • Capture first, upload later. The most reliable strategy is to film and photograph freely during the event, accepting that live uploading will be poor quality, then upload everything from your accommodation on wifi after the event ends. The visual content keeps for hours. The upload does not need to be live.
  • Set communication expectations before the event. If anyone is tracking your location or expecting messages during the festival, let them know you will be in a congested area and may have communication delays.
  • Position for both view and connectivity. At mass release events, the outer edges of the viewing area typically have better signal per person than the densest center. A slightly less optimal view of the launch and a functioning camera upload is usually the better tradeoff.
  • Use offline camera mode. Your phone camera does not need a data connection to take photos or video. Turn off wifi and mobile data briefly during the launch if connection quality is frustrating you. Reconnect after to post.

Practical logistics for Yi Peng in Chiang Mai

The logistics of the Yi Peng festival require planning that is separate from the connectivity strategy.

  • Accommodation must be booked six to eight weeks in advance. Chiang Mai fills completely for Yi Peng. Hotel prices at the festival period are three to five times normal rates. Book immediately once 2026 dates are confirmed.
  • Transport into Chiang Mai during festival week. Bus and train tickets from Bangkok sell out. Book transport at the same time as accommodation.
  • Commercial mass release tickets. The organized events with coordinated lantern launches sell tickets in advance through their websites and some third-party platforms. These events provide the most photogenic experience but fill up months ahead.
  • Download Chiang Mai offline maps before the festival night. Navigation after the festival, when you are moving through crowded streets in the dark with a phone that may have a congested connection, is much smoother with an offline map already loaded.