ClimateForecastDecemberJanuary >>

Koh Samui weather in December

Are you planning a trip to Koh Samui in December and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Koh Samui in December?

Koh Samui is a region in Thailand. December in Koh Samui generally has warm temperatures, with precipitation levels ranging from high to heavy.

You can expect warm maximum daytime temperatures of around 29°C and nighttime temperatures around 26°C in Chaweng Beach.

In December, precipitation varies across different areas. From high rainfall in Choeng Mon Beach with an average of 147 mm to heavy rainfall in Laem Sor with 164 mm. Most areas experience a moderate amount of sunshine, with approximately 177 hours of sunlight expected in Chaweng Beach. This makes it neither too gloomy nor overly bright.

For specific regional insights in Koh Samui for December, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Koh Samui climate page.

Where to go in Koh Samui in December

Find the average weather conditions in December for the most popular destinations in Koh Samui on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Koh Samui

What is the weather like in December for the 5 most popular destinations in Koh Samui?

Average weather in Chaweng Beach

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

Chaweng Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
29°C 
26°C 
175 hours 
295 mm 
19 days 
poor 
29°C 
26°C 
177 hours 
150 mm 
14 days 
January   >> January
>>  
28°C 
26°C 
200 hours 
82 mm 
9 days 
Climate in Chaweng Beach

Average weather in Lamai Beach

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

Lamai Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
29°C 
26°C 
175 hours 
302 mm 
19 days 
poor 
29°C 
26°C 
177 hours 
157 mm 
14 days 
January   >> January
>>  
29°C 
26°C 
200 hours 
84 mm 
9 days 
Climate in Lamai Beach

Average weather in Bophut

In December Bophut generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Bophut
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
29°C 
26°C 
175 hours 
292 mm 
19 days 
poor 
29°C 
26°C 
177 hours 
148 mm 
14 days 
January   >> January
>>  
28°C 
26°C 
200 hours 
81 mm 
9 days 
Climate in Bophut

Average weather in Choeng Mon Beach

In December Choeng Mon Beach generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Choeng Mon Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
29°C 
26°C 
175 hours 
291 mm 
19 days 
poor 
29°C 
26°C 
177 hours 
147 mm 
14 days 
January   >> January
>>  
28°C 
26°C 
200 hours 
81 mm 
10 days 
Climate in Choeng Mon Beach

Average weather in Mae Nam Beach

In December Mae Nam Beach generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Mae Nam Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
29°C 
26°C 
175 hours 
291 mm 
19 days 
poor 
29°C 
26°C 
177 hours 
148 mm 
14 days 
January   >> January
>>  
28°C 
26°C 
200 hours 
81 mm 
9 days 
Climate in Mae Nam Beach

Is your destination not in the list? Have a look at other destinations in Koh Samui, in Thailand.

Is December the best time to visit Koh Samui?

Given the typically pleasant weather conditions in Chaweng Beach, December might be a good time to visit Koh Samui. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Koh Samui is in January and February with generally perfect weather in Chaweng Beach. On the other hand, the weather in October and November tend to be poor.

Interested in more climate information?

We have much more information about the climate in Koh Samui. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • 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 climate conditions. Find out where to go with our weather planner.