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Koh Samui weather in October (Bangkok Province, Thailand)

How is the weather in Koh Samui in October? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In October, Koh Samui generally has high temperatures and heavy rainfall. Throughout the day, temperatures typically settle at around 29°C. But by evening, they drop to around 26°C.

While these temperatures are typical, some days might be even hotter. Always be prepared for the unexpected spikes in warmth. Dressing in lightweight and breathable outfits will help you stay cool. Don't forget to stay hydrated and wear sun protection to handle the heat better.

Koh Samui in October usually receives heavy rainfall, averaging around 296 mm for the month. This month marks the year's heaviest rainfall, with frequent intense rainshowers. It's advisable to be prepared with appropriate rain gear to stay dry. Based on our climate data of the past 30 years, about 20 days of rain are anticipated.

The area experiences a moderate amount of sunshine, with approximately 146 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you're looking for dry conditions and comfortable temperatures, October may not be the ideal month to visit Koh Samui. 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 October

Min TemperatureMin Temperature 26°C  
Max TemperatureMax Temperature 29°C  
Water TemperatureWater Temperature 29°C  
Chance of RainChance of Rain 67%  
PrecipitationPrecipitation 296 mm  
Rainy daysRainy days 20 days  
HumidityHumidity 85%  
SunshineSunshine 146 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Thailand in October

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

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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 October?

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. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 29°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 October.

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.