Koh Samui Weather in October

Warm and pleasant, with frequent heavy rain. Average highs of 26°C and lows of 23°C, with around 27 rainy days expected throughout the month.

While October isn't our top-rated month for Koh Samui, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high

26°C

Average low

23°C

Rainy days

27 days

Best months to visit

February, March

What to do in Koh Samui in October

Whatever the weather, Koh Samui rewards curious visitors. Here are some of the best ways to spend your time:

Visit iconic Koh Samui attractions and temples Explore local markets and traditional neighborhoods Experience regional cuisine and dining specialties Trek or hike nearby mountains or natural features Engage with local culture and minority communities Photography opportunities at scenic viewpoints

What to pack for October

Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.