☀️ Yes! Average temperature: 29°C
Yes! Average temperatures of 29°C make it pleasantly warm and ideal for sun-seekers. Koh Samui in October has an average air temperature of 29°C with sea temperatures around 28°C. You can expect 5 hours of sunshine per day and 240mm of rainfall, which means very heavy rainfall — this is the wet season.
At 28°C the sea is like a warm bath — perfect for swimming, snorkelling, and diving. With 5 hours of daily sunshine, there's plenty of time to enjoy outdoor activities. Bring summer clothes, sunscreen, sunglasses, and a light cardigan for air-conditioned venues.
Koh Samui is one of the top warm destinations for October holidays from the UK. The average flight time from the UK is comfortable and there are usually good deals available for this time of year.
Here's how Koh Samui stacks up against similar destinations in October:
| Destination | Air °C | Sea °C | Rain | Sun |
|---|---|---|---|---|
| Koh Samui | 29°C | 28°C | 240mm | 5h |
| Bali | 29°C | 28°C | 60mm | 7h |
| Barbados | 29°C | 29°C | 155mm | 7h |
| Boracay | 29°C | 29°C | 200mm | 6h |
| Cancun | 29°C | 28°C | 165mm | 7h |
| Diani Beach | 29°C | 27°C | 80mm | 8h |
See how Koh Samui's temperature changes throughout the year:
Looking for somewhere warm in October? These destinations are all 25°C+:
Yes, Koh Samui in October has average temperatures of 29°C, making it a warm destination. Sea temperatures are 28°C.
Yes, the sea temperature of 28°C is very comfortable for swimming.
Bring summer clothes, sunscreen, sunglasses, and a light cardigan for air-conditioned venues.
October is an excellent time to visit Koh Samui with warm weather and 5 hours of daily sunshine.
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