Ko Samui
October
Weather in Ko Samui for October 2025
Your guide to Ko Samui weather in October - trends and predictions
In general, the average temperature in Ko Samui at the beginning of October is 28.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 28.9 °C by the end of October.
Ko Samui experiences an exceptionally high level of rainfall in October, with more than 24 rainy days on average.
Is October a good time to visit Ko Samui? check out the best time to travel to Ko Samui page.
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1
Dry days
30
Rainy days
0
Snow days
29°/27°
Temperatures
18 km/h
Avg max wind
75 %
Avg humidity
Ko Samui in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2  29° | 3 29° | 4 28° | 5 28° | ||
| 6 28° | 7 28° | 8 29° | 9 29° | 10 29° | 11 28° | 12 29° |
| 13 29° | 14  29° | 15 29° | 16 29° | 17 29° | 18 28° | 19 28° |
| 20 29° | 21 29° | 22 29° | 23 29° | 24 29° | 25 28° | 26 29° |
| 27 29° | 28 29° | 29  29° | 30 29° | 31 29° |
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Temperatures trend during October in Ko Samui
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. | Cloudy | 29° /27° | 1.8 mm | 6 | |
| 2 Oct. | Light rain shower | 29° /27° | 2.2 mm | 6 | |
| 3 Oct. | Light rain shower | 29° /26° | 12.3 mm | 6 | |
| 4 Oct. | Light rain shower | 28° /27° | 6.5 mm | 6 | |
| 5 Oct. | Light rain shower | 28° /27° | 8.5 mm | 6 | |
| 6 Oct. | Light rain shower | 28° /27° | 17.1 mm | 6 | |
| 7 Oct. | Light rain shower | 28° /26° | 8.9 mm | 6 | |
| 8 Oct. | Light rain shower | 29° /26° | 7.7 mm | 6 | |
| 9 Oct. | Light rain shower | 29° /26° | 8.6 mm | 6 | |
| 10 Oct. | Patchy rain possible | 29° /27° | 3.1 mm | 6 | |
| 11 Oct. | Patchy rain possible | 28° /26° | 14 mm | 6 | |
| 12 Oct. | Patchy rain possible | 29° /27° | 11.6 mm | 6 | |
| 13 Oct. | Patchy rain possible | 29° /28° | 5.7 mm | 6 | |
| 14 Oct. | Patchy light drizzle | 29° /27° | 4.1 mm | 6 | |
| 15 Oct. | Patchy rain possible | 29° /27° | 9.6 mm | 6 | |
| 16 Oct. | Light rain shower | 29° /27° | 10.5 mm | 6 | |
| 17 Oct. | Light rain shower | 29° /27° | 14.2 mm | 6 | |
| 18 Oct. | Light rain shower | 28° /26° | 17.8 mm | 6 | |
| 19 Oct. | Patchy rain possible | 28° /26° | 16.1 mm | 6 | |
| 20 Oct. | Patchy rain possible | 29° /28° | 9.1 mm | 6 | |
| 21 Oct. | Patchy rain possible | 29° /27° | 1.7 mm | 6 | |
| 22 Oct. | Patchy rain possible | 29° /27° | 3.3 mm | 7 | |
| 23 Oct. | Light rain shower | 29° /27° | 4.5 mm | 6 | |
| 24 Oct. | Patchy rain possible | 29° /27° | 3.3 mm | 6 | |
| 25 Oct. | Patchy rain possible | 28° /27° | 7 mm | 6 | |
| 26 Oct. | Patchy rain possible | 29° /27° | 2.9 mm | 6 | |
| 27 Oct. | Patchy rain possible | 29° /27° | 1.8 mm | 6 | |
| 28 Oct. | Patchy rain possible | 29° /27° | 3.3 mm | 6 | |
| 29 Oct. | Partly cloudy | 29° /27° | 6.3 mm | 7 | |
| 30 Oct. | Light rain shower | 29° /27° | 8.7 mm | 6 | |
| 31 Oct. | Light rain shower | 29° /27° | 7.2 mm | 6 | |
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Important Notice
Our weather forecast for Ko Samui in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ko Samui forecast closer to your planned date for the most up-to-date weather information.
Ko Samui in October - FAQ
What are the expected maximum and minimum temperatures in Ko Samui during October?
During October, expect a variety of temperatures with highs around 29° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ko Samui during October?
Significant rainfall exceeding 237.2 mm is expected in Ko Samui during October, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ko Samui during October?
The average wind speed in Ko Samui during October is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Ko Samui in October?
As you prepare for your trip to Ko Samui in October, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Ko Samui, during October, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
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