Koh Samui weather in January (Bangkok Province, Thailand)

Planning a trip to Koh Samui in January? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In Koh Samui the weather in January is generally perfect, characterized by high temperatures and moderate rainfall. Anticipate daytime temperatures around 29°C, while night temperatures can drop to 26°C.

Koh Samui in January usually receives moderate rainfall, averaging around 81 mm for the month. Rain is expected on roughly 9 days.

The days are predominantly sunny, with an estimated total of around 200 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're a fan of comfortable temperatures and drier conditions, January is a great time to visit. January and February generally stand out with the best circumstances. While October and November tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Koh Samui climate page with graphs.

 

Koh Samui, monthly averages in January

Min TemperatureMin Temperature 26°C  
Max TemperatureMax Temperature 29°C  
Water TemperatureWater Temperature 27°C  
Chance of RainChance of Rain 31%  
PrecipitationPrecipitation 81 mm  
Rainy daysRainy days 9 days  
HumidityHumidity 83%  
SunshineSunshine 200 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Thailand in January

Find out more about the weather in Thailand in January and which places have the best weather conditions in this month.

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).

So, what should you wear in Koh Samui in January?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. With a water temperature of around 27°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in January.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Koh Samui.

Our site offers climate and forecast data for every country in the world. Are you going to Thailand? On this website you can find 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.