When we talk about the weather in Thailand December, it’s often seen as one of the best times to visit. December marks the start of the cool, dry season, making it comfortable and inviting for travelers. The temperatures drop from the intense heat of the previous months, and rainfall becomes much less frequent. This combination means plenty of sunshine and pleasant days, perfect for exploring cities, beaches, and cultural sites.
One unique highlight of December is the festive mood leading up to the New Year celebrations in Thailand. It’s a lively atmosphere but without the extreme crowds you might find during other holidays. Compared to the rainy season, December feels fresh and clear, making it an ideal time for outdoor activities.
Quick Weather Overview
| Weather Factor | Average |
|---|---|
| High Temperature | 30°C (86°F) |
| Low Temperature | 21°C (70°F) |
| Rainfall | 15 mm (0.6 inches) |
| Rainy Days | 4 days |
| Sunshine Hours | 8-9 hours/day |
| Sea Temperature | 27°C (81°F) |
| Humidity | 55-65% |
These numbers show a clear shift from the wet to dry season. Rainfall is minimal, and humidity drops enough to make outdoor activities comfortable. The sea remains warm enough for swimming and water sports.
Temperature Details in Thailand December
The daytime temperatures in December are quite comfortable, usually hovering around 30°C (86°F). It rarely gets too hot, which is a relief after the earlier months of intense heat. Nighttime temperatures cool down to around 21°C (70°F), creating a pleasant contrast that’s perfect for evening strolls or dining outside.
Early December might still feel a bit warm in some areas, especially in the south. But by mid to late December, cooler breezes start to settle in. The northern regions can get noticeably cooler, making it a good time to bring a light jacket if you plan to visit places like Chiang Mai.
Rainfall and Humidity
One of the biggest draws of December travel is the low chance of rain. On average, there are only about 4 rainy days, and the total rainfall is around 15 mm. This means you’re mostly safe from the heavy downpours common in the monsoon season.
Humidity levels drop to around 55-65%, which is very comfortable compared to the sticky conditions earlier in the year. This reduced humidity makes walking around cities or hiking feel much less exhausting.
What to Pack for December in Thailand
- Lightweight clothing for daytime, such as cotton shirts and shorts
- A light sweater or jacket for cooler evenings, especially if visiting northern areas
- Comfortable walking shoes or sandals
- Swimwear for beaches and pools
- Sunscreen and a hat for sun protection during the day
- A compact umbrella or light rain jacket, just in case of a rare shower
- Reusable water bottle to stay hydrated
One tip to keep in mind: many travelers forget a good pair of sunglasses. The sun can be quite strong despite the cooler air, so protecting your eyes helps a lot.
Events and Festivals in December
December hosts several cultural highlights. The most famous is the King’s Birthday on December 5th, a national holiday marked by ceremonies and celebrations. The atmosphere around the country is respectful yet festive.
Later in the month, the lead-up to New Year’s Eve is filled with various events. From beach parties in Phuket to quiet temple visits in Chiang Mai, there’s something for every preference. This period can see a modest increase in tourist numbers, but it rarely feels overcrowded.
Is December a Good Time to Visit Thailand?
We think December is an excellent time to visit Thailand for most travelers. The weather is generally pleasant, crowd levels are manageable, and there are plenty of things to do outdoors. It’s especially suitable for beach lovers, cultural explorers, and families looking for a break from colder climates.
On the flip side, some areas might see slightly higher prices due to holiday demand. If you prefer a quiet experience, early December tends to be less busy than the weeks right before New Year. The cooler temperatures also mean it’s not the best time for those wanting a hot tropical sunbathing trip.
Quick Travel Tips for December in Thailand
- Plan outdoor activities in the morning or late afternoon to avoid midday sun.
- Book accommodations in advance if traveling during the New Year period.
- Carry water and stay hydrated, even if the heat feels mild.
- Use sunscreen regularly, especially on beach days.
- Check local event calendars to catch unique cultural experiences.
- Consider renting a motorbike for flexible travel around towns and beaches.
Exploring Thailand in December offers a balance of pleasant weather and cultural richness. We hope this guide helps you pack smart, plan well, and enjoy the best of what Thailand has to offer this month. Feel free to share your experiences or ask questions in the comments below!