Koh Samui

Koh Samui Weather in October

Average temperatures, rainfall, sunshine and the best places to visit in Koh Samui, Thailand in October.

Planning a getaway to Koh Samui, Thailand this October 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 Koh Samui in October

Koh Samui, Thailand is a region in Thailand. October in Koh Samui generally has temperatures that range from warm to very warm, with heavy precipitation.

Temperatures

The average highest temperatures fluctuate between warm in Bophut at 29°C (84°F) to very warm in Suratthani at 31°C (88°F). Nighttime temperatures generally drop to 25°C (77°F) in Suratthani and 26°C (79°F) in Bophut . The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For specific regional insights in Koh Samui, Thailand, refer to the map provided below.

Precipitation

In October, precipitation varies across different areas. From heavy rainfall in Laem Sor with an average of 289 mm (11 in) to heavy rainfall in Suratthani with 312 mm (12 in). Looking at the climate data spanning the last 30 years, this month sees the heaviest rainfall of the year in Chaweng Beach.

Average sunshine

Sunshine is fairly consistent across many areas. Chaweng Beach receives about 146 hours of sunlight in October, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Koh Samui by month

Pick a month to see the average temperature, rainfall and sunshine in Koh Samui — and find the best time to visit. (based on Chaweng Beach)

Best Places to Visit in Koh Samui in October

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

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 Koh Samui

What is the weather like in October for some of the most popular destinations in Koh Samui, Thailand?

Temperature range in Koh Samui (October)

Precipitation variation in Koh Samui (October)

Chaweng Beach

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

September
October
November
Max temperature
30°C (86°F)
29°C (84°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
145 hours
146 hours
175 hours
Monthly rainfall
162 mm (6.4 in)
302 mm (12 in)
295 mm (12 in)
Monthly rainy days
18 days
20 days
19 days
Weather conditions

Lamai Beach

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

September
October
November
Max temperature
30°C (86°F)
29°C (84°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
145 hours
146 hours
175 hours
Monthly rainfall
152 mm (6 in)
296 mm (12 in)
302 mm (12 in)
Monthly rainy days
18 days
20 days
19 days
Weather conditions

Bophut

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

September
October
November
Max temperature
30°C (86°F)
29°C (84°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
145 hours
146 hours
175 hours
Monthly rainfall
166 mm (6.5 in)
304 mm (12 in)
292 mm (11 in)
Monthly rainy days
18 days
20 days
19 days
Weather conditions

Choeng Mon Beach

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

September
October
November
Max temperature
30°C (86°F)
29°C (84°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
145 hours
146 hours
175 hours
Monthly rainfall
170 mm (6.7 in)
306 mm (12 in)
291 mm (11 in)
Monthly rainy days
18 days
20 days
19 days
Weather conditions

Mae Nam Beach

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

September
October
November
Max temperature
30°C (86°F)
29°C (84°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
145 hours
146 hours
175 hours
Monthly rainfall
166 mm (6.5 in)
303 mm (12 in)
291 mm (11 in)
Monthly rainy days
18 days
20 days
19 days
Weather conditions

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

Popular cities in October

Day & night temperatures, rainfall and average weather in Koh Samui in October.

City Weather Day temp Night temp Rainfall
Chaweng Beach 29°C (84°F) 26°C (79°F) 302 mm (12 in)
Lamai Beach 29°C (84°F) 26°C (79°F) 296 mm (12 in)
Bophut 29°C (84°F) 26°C (79°F) 304 mm (12 in)
Choeng Mon Beach 29°C (84°F) 26°C (79°F) 306 mm (12 in)
Mae Nam Beach 29°C (84°F) 26°C (79°F) 303 mm (12 in)
Bangrak Beach 29°C (84°F) 26°C (79°F) 304 mm (12 in)

Koh Samui weather in October: frequently asked questions

What is the weather like in Koh Samui, Thailand in October?

Koh Samui, Thailand typically experiences poor weather in October, part of the season. Daytime highs in Chaweng Beach average around 29°C (84°F), and temperatures drop to about 26°C (79°F) at night.

What is the average temperature in Koh Samui, Thailand in October?

In Chaweng Beach, the average daytime high in October is 29°C (84°F), while nighttime temperatures drop to around 26°C (79°F).

Does Koh Samui, Thailand get a lot of rain in October?

Expect plenty of rainfall. Chaweng Beach records an average of 302 mm (12 in) in October, putting it among the wetter months for Koh Samui, Thailand.

Is October a Good Time to Visit Koh Samui, Thailand?

In our opinion, October may not be the ideal time to visit Koh Samui, Thailand due to the typically poor weather in Chaweng Beach.

On average, the best time to visit Koh Samui, Thailand 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.

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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