Weather in Koh Samui in November
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Links below are affiliate links.
Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for November in Koh Samui.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youKoh Samui in November is hot — daytime temperatures average 28.1°C, dropping to 24.5°C at night. The month is extremely wet, with heavy downpours most days, with roughly 8.0 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Koh Samui — every month compared. Once you know when to go, find your Koh Samui packing list at 247PackingList.
Get ready for Koh Samui in November
Search flights to Koh Samui
Compare 100+ airlines for November — one search, best price.
Search Flights →Lightweight travel clothing
Lightweight, breathable clothing and a compact travel umbrella are essential in this climate.
Check Price →What to pack for Koh Samui in November
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Koh Samui
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 28.5°C | 43.1mm | 10/10 |
| February | 29.0°C | 58.2mm | 10/10 |
| March | 30.5°C | 36.5mm | 10/10 |
| April | 31.1°C | 106.9mm | 9/10 |
| May | 31.0°C | 134.5mm | 9/10 |
| June | 30.6°C | 102.4mm | 9/10 |
| July | 30.0°C | 149.9mm | 9/10 |
| August | 30.4°C | 114.2mm | 9/10 |
| September | 29.2°C | 196.8mm | 9/10 |
| October | 28.5°C | 244.4mm | 8/10 |
| November | 28.1°C | 323.1mm | 8/10 |
| December | 27.9°C | 161.7mm | 9/10 |
Full month-by-month guide: best time to visit Koh Samui →
For facts about Thailand — currency, language and dialling code — see our Thailand country guide at 247CountryInfo. Travellers also find it useful to keep a Koh Samui travel guide to hand. Check clothing sizes in Thailand before you shop.
Frequently Asked Questions
Is November a good time to visit Koh Samui?
November rates 8/10 for visiting Koh Samui — good time to visit. Expect average highs of 28.1°C, 323.1mm of rain across the month and about 8.0 hours of daily sunshine.
What is the temperature in Koh Samui in November?
In November, Koh Samui has average highs of 28.1°C (82.6°F) and average lows of 24.5°C (76.1°F).
Does it rain in Koh Samui in November?
Yes — November is one of the wetter months in Koh Samui, averaging 323.1mm of rain over roughly 26 rainy days. Pack for heavy showers.
What should I wear in Koh Samui in November?
For Koh Samui in November (28.1°C highs / 24.5°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, compact travel umbrella.
More essentials for Koh Samui in November
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.