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Thailand Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Thailand in December.

Planning a getaway to Thailand this December and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Thailand in December

December in Thailand generally has temperatures that range from warm to very warm, with precipitation levels ranging from low to heavy.

Temperatures

The average highest temperatures fluctuate between warm in Bo Kluea at 25°C (77°F) to very warm in Ang Thong at 34°C (93°F). Nighttime temperatures generally drop to 23°C (73°F) in Ang Thong and 10°C (50°F) in Bo Kluea. On average, December is the month with the lowest temperatures of the year in Bangkok.

To explore the conditions in Thailand in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From low rainfall in Mukdahan with an average of 5.8 mm (0.2 in) to heavy rainfall in Sungai Kolok with 426 mm (17 in). In Bangkok, this particular month consistently records the lowest levels of rainfall, making it the driest period throughout the entire year.

Average sunshine

Many locations offer abundant sunshine during this month. For instance, Bangkok enjoys approximately 262 hours of sunlight, ideal for those seeking sunny weather.

Explore Thailand by month

Pick a month to see the average temperature, rainfall and sunshine in Thailand — and find the best time to visit. (based on Bangkok)

Best Places to Visit in Thailand in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Thailand.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Thailand

What is the weather like in December for some of the most popular destinations in Thailand?

Temperature range in Thailand (December)

Precipitation variation in Thailand (December)

Bangkok

In December Bangkok generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 23°C (73°F) and low monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
34°C (93°F)
33°C (91°F)
33°C (91°F)
Min temperature
25°C (77°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
234 hours
262 hours
273 hours
Monthly rainfall
43 mm (1.7 in)
11 mm (0.4 in)
22 mm (0.9 in)
Monthly rainy days
6 days
a single day
a single day
Weather conditions

Chiang Mai

In December Chiang Mai generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 16°C (61°F) and low monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
31°C (88°F)
30°C (86°F)
31°C (88°F)
Min temperature
19°C (66°F)
16°C (61°F)
15°C (59°F)
Monthly sun hours
218 hours
259 hours
270 hours
Monthly rainfall
26 mm (1 in)
12 mm (0.5 in)
9.2 mm (0.4 in)
Monthly rainy days
6 days
2 days
a single day
Weather conditions

Patong Beach

In December Patong Beach generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are pleasant that month.

November
December
January
Max temperature
29°C (84°F)
29°C (84°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
175 hours
200 hours
235 hours
Monthly rainfall
219 mm (8.6 in)
106 mm (4.2 in)
57 mm (2.2 in)
Monthly rainy days
16 days
9 days
5 days
Weather conditions

Hua Hin

In December Hua Hin generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
189 hours
264 hours
266 hours
Monthly rainfall
81 mm (3.2 in)
19 mm (0.7 in)
22 mm (0.9 in)
Monthly rainy days
9 days
2 days
2 days
Weather conditions

Ao Nang Beach

In December Ao Nang Beach generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 25°C (77°F) and high monthly rainfall. So on average the conditions are tolerable that month.

November
December
January
Max temperature
30°C (86°F)
30°C (86°F)
31°C (88°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
140 hours
181 hours
200 hours
Monthly rainfall
202 mm (8 in)
102 mm (4 in)
52 mm (2 in)
Monthly rainy days
17 days
10 days
5 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Thailand.

In our records: Thailand December extremes

Notable December records observed across cities in Thailand in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in Thailand dropped to 2°C (36°F) in Chiang Rai on December 25, 1999.

Popular cities in December

Day & night temperatures, rainfall and average weather in Thailand in December.

City Weather Day temp Night temp Rainfall
Bangkok 33°C (91°F) 23°C (73°F) 11 mm (0.4 in)
Chiang Mai 30°C (86°F) 16°C (61°F) 12 mm (0.5 in)
Koh Samui 29°C (84°F) 26°C (79°F) 150 mm (5.9 in)
Hua Hin 30°C (86°F) 24°C (75°F) 19 mm (0.7 in)
Koh Chang 30°C (86°F) 25°C (77°F) 20 mm (0.8 in)
Chiang Rai 28°C (82°F) 16°C (61°F) 27 mm (1.1 in)

Thailand weather in December: frequently asked questions

What is the weather like in Thailand in December?

Thailand typically experiences tolerable weather in December, part of the season. Daytime highs in Bangkok average around 33°C (91°F), and temperatures drop to about 23°C (73°F) at night.

What is the average temperature in Thailand in December?

Daytime temperatures in Bangkok peak at roughly 33°C (91°F) in December, dropping to about 23°C (73°F) overnight.

Does Thailand get a lot of rain in December?

Not particularly. Bangkok averages just 11 mm (0.4 in) of rain in December, making it a mostly dry month for Thailand.

Is December a Good Time to Visit Thailand?

We believe that December is one of the best times to visit Thailand with overall perfect weather in Bangkok.

On average, the best time to visit Thailand is in January and December with generally tolerable weather in Bangkok. On the other hand, the weather in February, March, April, May, June, July, August, September, October and November tend to be poor.

Interested in more climate information?

We have much more information about the climate in Thailand.

Weather and climate has detailed information for every country in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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