Thailand Weather December
Home › Weather › Thailand Weather December
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Policyline weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
December is the coolest and driest month to visit Thailand, offering comfortable conditions across most of the country. The live forecast above shows current conditions for Bangkok, but you should expect clear skies and low humidity in the north and central regions, while the Gulf coast sees some lingering showers.
What is the weather like in Thailand during December?
December marks the peak of the cool season, with daytime temperatures ranging from 28–32°C across most lowland areas. In Bangkok, expect warm, dry days with very little rainfall. The northern hills around Chiang Mai can be noticeably cooler, particularly overnight, with lows dipping to 15–18°C. For those checking thailand weather december phuket, the Andaman coast enjoys its finest weather of the year — calm seas, abundant sunshine and minimal rain. The Gulf coast, including Koh Samui, remains a little wetter but still sees long sunny spells.
Which regions are best for a December holiday?
The Andaman coast — Phuket, Krabi and the Phi Phi islands — is ideal in December, with low humidity and reliable sunshine. The north offers cooler temperatures perfect for exploring temples and hill-tribe villages. If you are weighing up weather thailand december january, December is slightly cooler and drier than January in the north, while the south stays similarly fine. For thailand weather december bangkok, the capital is at its most pleasant — warm days, cool evenings and almost no rain. Those asking about thailand weather december fahrenheit will find Bangkok highs around 86–90°F, with Phuket a touch warmer at 88–91°F.
Is December a good time to visit Thailand overall?
Yes — it is widely considered the best month. The cool, dry season means comfortable sightseeing, excellent diving conditions on the Andaman coast, and very little disruption from rain across most regions.
Does it rain in Phuket during December?
Very rarely. December is Phuket’s driest month, with only 3–5 wet days on average. Expect long sunny spells, calm seas and low humidity — ideal for beach holidays and island hopping.
What should I pack for Thailand in December?
Light, breathable clothing for daytime, plus a light jacket or jumper for cooler evenings, especially in the north. Sunscreen, a hat and swimwear are essential. An umbrella is rarely needed but can be useful on the Gulf coast.
For more seasonal guidance, see our UK weather hub or compare conditions with Dubai Weather and Barcelona Weather.
