Thailand Tours in December
Thailand's cool season peaks with flawless weather — celebrate the King's Birthday, bask on Andaman beaches, and ring in the New Year under tropical stars.
Why Visit Thailand in December?
From perfect weather to cultural festivals, here's what makes December an incredible time to explore Thailand.
Perfect Cool Season Weather
December is one of Thailand's finest months with dry skies, comfortable temperatures of 28-31°C, and low humidity. Conditions are ideal for beach holidays, temple exploration, and outdoor adventures across the country.
King's Birthday (Father's Day)
December 5 is Thailand's national Father's Day celebrating the King's birthday. Buildings are illuminated in yellow, and Thais honour their fathers with special ceremonies and yellow-ribbon displays.
Andaman Beach Season
December is peak season on the Andaman coast with crystal-clear seas, calm waters, and perfect snorkeling and diving conditions. Phuket, Krabi, and the Phi Phi Islands are at their spectacular best.
New Year's Eve Celebrations
Thailand rings in the New Year with spectacular celebrations. Bangkok's CentralWorld countdown is legendary, Chiang Mai hosts lantern-lit parties, and beach resorts in Phuket and Koh Samui throw tropical NYE bashes.
Cool Mountain Weather
Chiang Mai and the northern mountains experience their coolest temperatures of the year in December, dropping to 14°C at night. The crisp mountain air is perfect for trekking, cycling, and exploring hill tribe villages.
Thailand Weather in December
City-by-city weather guide to help you pack smart and plan your perfect itinerary.
| City | Avg. High | Avg. Low | Rain Days | Best For |
|---|---|---|---|---|
| Bangkok | 31°C (88°F) | 21°C (70°F) | 1-2 days | Grand Palace, river cruises, night markets, New Year celebrations |
| Chiang Mai | 28°C (82°F) | 14°C (57°F) | 1-2 days | Doi Suthep, night bazaar, elephant sanctuaries, mountain trekking |
| Phuket | 31°C (88°F) | 24°C (75°F) | 3-5 days | Phi Phi Islands, Similan Islands, Patong Beach, diving |
| Koh Samui | 28°C (82°F) | 23°C (73°F) | 12-14 days | Big Buddha, Fisherman's Village, spa retreats |
| Krabi | 31°C (88°F) | 23°C (73°F) | 4-6 days | Railay Beach, Four Islands, Hong Islands, rock climbing |
Recommended Tours for December
All tours operate year-round with guaranteed daily departures. Prices shown are per person.
Top Experiences in December
Don't miss these incredible activities during your Thailand visit.
Phi Phi Islands Day Trip
Cruise to the Phi Phi Islands from Phuket or Krabi in December's calm Andaman seas for crystal-clear snorkeling and swimming. Maya Bay, Pileh Lagoon, and Bamboo Island are at their most beautiful with perfect visibility and warm water.
Grand Palace & Temple Circuit
Explore Bangkok's Grand Palace, Wat Pho, and Wat Arun in December's ideal weather with cool mornings and warm afternoons. The golden spires gleam against cloudless blue skies, creating the most photogenic conditions of the year.
Similan Islands Diving
Dive the world-renowned Similan Islands in December's peak conditions with 30-metre visibility, warm water of 28°C, and encounters with manta rays and reef sharks. Multi-day liveaboard trips offer the ultimate diving experience.
Chiang Mai Elephant & Culture Day
Combine an morning elephant sanctuary visit with an afternoon exploring Chiang Mai's Old City temples in December's cool comfortable weather. End the day browsing the famous Night Bazaar for handicrafts and street food.
New Year's Eve on the Beach
Celebrate New Year's Eve on a Phuket or Koh Samui beach with fire shows, fireworks over the ocean, and festive beach parties. December 31 is the most sought-after night of the year at Thai beach resorts.
Doi Inthanon Summit Trek
Trek to the summit of Thailand's highest peak near Chiang Mai in December's crisp mountain air when temperatures can drop near freezing at dawn. Visit the twin royal pagodas, spectacular waterfalls, and Hmong hill tribe markets.
December Travel Tips
Essential tips for planning your Thailand trip this December.
Book Everything Early
December is Thailand's peak tourist month with the highest demand for hotels, flights, and tours. Book accommodation and activities at least 2-3 months in advance, especially for Christmas week and New Year's Eve.
Expect Peak Season Prices
December prices are at their highest, particularly during the Christmas and New Year period. Beach resort rates can double or triple compared to green season. Budget travellers should consider less popular islands or inland destinations.
Layer Up in the North
Chiang Mai nights drop to 14°C and mountain areas can reach near freezing in December. Pack a warm jacket, long trousers, and closed-toe shoes for northern Thailand. Southern beach destinations remain warm at 24°C minimum.
Respect the King's Birthday
December 5 is a deeply important Thai holiday. Wearing yellow shows respect for the monarchy. Some businesses and government offices close. The Thai people appreciate visitors who acknowledge and respect their national celebrations.
Gulf Islands Still Rainy
Koh Samui continues to experience monsoon rain through December, making it less ideal for beach holidays. Choose the Andaman coast at Phuket, Krabi, or Koh Lanta for the best December beach conditions.
Book NYE Dinners in Advance
New Year's Eve dinners, beach parties, and rooftop events in Bangkok, Phuket, and Chiang Mai sell out weeks ahead. Reserve your NYE celebration early and confirm arrangements as demand is extremely high.
Frequently Asked Questions
Everything you need to know about visiting Thailand in December.
Ready to Book Your December Tour?
December is Thailand at its absolute finest — flawless weather, world-class beaches, festive celebrations, and unforgettable New Year memories under the tropical stars.
