Festivals worth flying for

Thailand's calendar is studded with festivals that transform ordinary towns overnight. Some are worth planning an entire trip around; all are better with a little literacy. Dates follow lunar calendars and official announcements — confirm each year's dates before booking.

The big two

• Songkran (Thai New Year, mid-April): the world's largest water fight layered over a genuinely tender family-and-temple holiday. Chiang Mai's moat and Bangkok's closed streets host the epic version; small towns keep the gentler original. Rules of engagement: waterproof everything, respect monks/elders/motorcyclists, and lean in — dignity is not an option;
• Loy Krathong (November full moon): Thailand's loveliest night — candlelit krathong rafts set onto every water body in the country. In Chiang Mai it pairs with Yi Peng's sky-lantern release: the photo that launched a million trips. Book the North far ahead for it.

The connoisseur's calendar

• Phuket Vegetarian Festival (Sept/Oct): nine days of Taoist devotion — firewalking, dramatic piercings, superb street food. Intense and unforgettable;
• Isaan's own: Yasothon's rocket festival (May, homemade rockets and mud), Phi Ta Khon's ghost masks (Loei, dates vary), Ubon's candle festival (July) — the northeast at its most exuberant (Isaan);
• Buddhist holy days (Makha/Visakha/Asalha Bucha): candlelit temple circumambulations, alcohol sales paused, the country at its most serene;
• Chinese New Year: Bangkok's Chinatown in full roar.

Attending well

Festivals are worship first, spectacle second: dress and behave for the temple parts, ask before photographing devotees, and book transport/rooms early — all of Thailand travels for the big ones. Etiquette covers the baseline.