Wondering about the weather in Thailand in December? Read on for a run-down of everything you need to know. Here we cover everything from average air and sea temperatures, to what to expect in terms of costs and crowds, and what to wear. In addition, we share inspired itinerary suggestions that’ll help you make the most of your trip.
December is a great time to visit Thailand. The weather is generally dry and pleasant, with milder temperatures in the north and central areas and ideal beach weather in the south. If you're planning a trip to Thailand, this month offers perfect conditions for sightseeing, outdoor adventures, and island-hopping.
The vacation season brings festive decorations and celebrations, but it also means peak tourist traffic, especially during Christmas and New Year. Reservation accommodation well in advance is highly recommended. If you're visiting Thailand with kids, family-friendly attractions like Chiang Mai’s night safari or Phuket’s water parks can add to the vacation fun while avoiding some of the busiest spots.
Despite the crowds and higher prices in popular tourist areas, cultural events and festivals — like Thailand’s vibrant New Year celebrations — make December an exciting and memorable time to explore the country.
Ao Nuan Beach on the island of Koh Samet in Thailand © Muzhik/Shutterstock
December is one of the coolest and driest months in Thailand, making it perfect for travel. In Bangkok, expect highs of 87°F (31°C) and lows around 70°F (21°C). Chiang Mai enjoys cooler days at 82°F (28°C) and chilly nights around 59°F (15°C).
In Phuket, Krabi, and Samui, the weather stays tropical with highs of 87°F (31°C) and lows of 77°F (25°C). Rainfall is minimal across the country — Bangkok and Chiang Mai get less than 1 inch (25mm), while Phuket sees about 3 inches (80mm). Sunshine is plentiful, averaging around 9 hours a day.
With pleasant temperatures and low humidity across the board, December is often considered the best time to visit Thailand, especially if you're after sun, comfort, and clear skies.
Wat Phra Mahathat Woramahawihan Nakhon Sri Thammarat, Thailand © sarayut_sy/Shutterstock
Thailand is at its busiest as tourists arrive for winter vacations. Popular islands like Koh Phi Phi, Koh Samui, and Phuket are packed. Prices for hotels, flights, and tours hit their peak, especially around Christmas and New Year. Major attractions like the temples in Bangkok or Chiang Mai’s Old City will be crowded, so patience is required. If you're searching for the best places to visit in Thailand while avoiding the masses, consider heading to lesser-known regions like Nan or Loei. Advance reservation is essential if you want to secure accommodations at reasonable rates.
Decided to book a December break? For further inspiration, discover more of the best places to travel in December.
Lumpini Park, Bangkok, Thailand @ Shutterstock
While going on a trip, one must consider the weather in Thailand in December and the nuances that this month brings. You may also be interested in our list of the best things to do in Thailand at any time of year.
In December, Thailand comes alive with a unique blend of local culture and festive spirit. Tourist areas are decorated with lights and ornaments, creating a vibrant, celebratory atmosphere. From Bangkok’s buzzing malls and rooftop bars to Chiang Mai’s cozy cafés and lantern-lit streets, the country feels extra magical this time of year.
To make the most of the season, consider where to stay in Bangkok for easy access to vacation events, shopping, and nightlife. Or enjoy a more laid-back celebration up north by choosing the right base for where to stay in Chiang Mai, where the cooler air and mountain views add to the charm.
Join in the celebrations and experience the joyful mix of Thai traditions and year-end festivities.
Thailand's diverse landscapes make December the perfect time for outdoor enthusiasts. You can explore lush national parks, go on thrilling hikes or discover pristine lakes by kayaking.
For underwater adventures, you can dive into crystal clear waters and see colorful coral reefs teeming with marine life. Also, Khao Sok National Park with its dense rainforests and mesmerizing wildlife is the perfect place for nature lovers and adventure seekers in December.
Nam Talu Cave in Khao Sok National Park: Surat Thani Province, Thailand © Shutterstock
Immerse yourself in Thailand's rich cultural heritage with fascinating traditional performances. Witness the mesmerizing Khon, a classic masked dance that recounts epic events from Thailand's history.
Experience the adrenaline rush of Muay Thai boxing, an integral part of Thai culture. In December, these cultural shows offer a deeper understanding of the country's traditions and enrich your Thailand trip.
Thailand's islands beckon with their golden shores. Head to Phuket, Krabi, Koh Samui or Pattaya to soak up the sun, take a dip in crystal clear waters and enjoy water sports such as snorkelling, diving and parasailing.
The favorable December weather provides optimal conditions for beach vacations, whether you are looking for relaxation or exciting adventure. These destinations promise a tropical paradise where you can relax, splash around or explore the stunning shores.
Phra That Si Chom Thong Temple , Chiangmai, Thailand © panda3800/Shutterstock
There are several festivals and events that take place in Thailand in December. Here's our pick:
Our Thailand itineraries are crafted to help you experience the best of the country, stress-free. Think of them as a starting point — perfect for planning, but flexible enough to adjust to your own pace and interests. After all, travel is about freedom, but a little planning goes a long way.
