Ko Samui Weather in October
Thailand · 30-year monthly averages
⚠️ Challenging time to visit
October in Ko Samui is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 24°C (76°F). Expect roughly 295mm of precipitation spread over about 16 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
31°C
87°F
Avg low
24°C
76°F
Rainfall
295mm
very wet
Rainy days
16
days with ≥1mm
🎒 What to pack
- breathable summer clothing
- sunscreen, hat and sunglasses
- refillable water bottle
- compact umbrella or rain jacket
October vs the rest of the year
FAQ
- How hot is Ko Samui in October?
- October in Ko Samui is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 24°C (76°F). Expect roughly 295mm of precipitation spread over about 16 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Ko Samui in October?
- Ko Samui sees around 295mm of precipitation in October on average — very wet by global standards.
- Is October a good time to visit Ko Samui?
- October is a challenging month to visit Ko Samui weather-wise — plan around the conditions.