Koh Samui weather February is the best bet on the calendar if dry days are your priority. On 30-year averages it is the driest month of the year, with rain on fewer than six days. There is a catch that few guides mention: it is also the windiest month, and that changes which beach you should head for.
This guide gives you the official averages, explains how the wind affects the sea, and covers what Chinese New Year means for prices and crowds in 2027.
Koh Samui Weather February at a Glance
February is peak dry season. Rain is rare, nights are warm and the sea is clear on calm days. The southeast and east wind is the main thing to plan around, especially for boat trips and east-coast swims.
- Rainfall
- 64.3 mm
- Rainy days
- 5.6
- Average high
- 29.4°C
- Average low
- 24.9°C
- Humidity
- 81%
- Wind
- 5.0 kn, southeast
These Koh Samui weather February figures are the 1991–2020 climate normals of the Thai Meteorological Department for its Ko Samui station. They describe a typical February, not a forecast for your dates, and one station stands for the whole island.
Good for
- Travellers who want the most dry days
- Beach holidays and sunsets
- Island trips on calm days
- Couples around Valentine's Day
Think twice if
- You want flat water on the east coast every day
- You are prone to seasickness and plan long crossings
- You are booking late around Chinese New Year
- You want low-season prices
Where Koh Samui weather February sits in the year: average rainfall per month in millimetres, Thai Meteorological Department, Ko Samui station, 1991–2020. Select a month to open its guide.
The driest month books up fast
Compare what is still available for your February dates, and check each rate's cancellation terms before you pay.
Koh Samui Weather February: Rain and Heat
The Thai Meteorological Department's Ko Samui station records an average of 64.3 mm of rain in February over 5.6 rainy days, the lowest of any month on both counts. For comparison, November averages 444.6 mm.
Temperatures start to climb: the average high is 29.4°C and the average low 24.9°C. Humidity drops to 81%, and cloud cover is among the lowest of the year, which makes for long sunny days.
Dry does not mean rain-free. A passing shower can still interrupt an afternoon, but it rarely lasts long.
Koh Samui Weather February: Sea Conditions and Swimming
February has the highest average wind speed of the year at the Ko Samui station, 5.0 knots, blowing mostly from the southeast. A breezy day pushes waves onto the east and south-east coasts, so Chaweng, Lamai and the south can be choppy while the north and west stay calm.
On calm days February brings some of the clearest water of the year. On windy days, crossings to Ang Thong and Koh Tao can be bumpy, and operators may postpone. Compare beaches in our best beaches in Koh Samui guide.
Swimming safety
Lifeguard cover is limited on many Samui beaches. Stay out of the water when red flags are up or when waves break hard on the shore, keep children within reach, and ask your hotel about currents on the day. A calm-looking bay can still pull.
Koh Samui Weather February: Where to Stay
With a southeast wind most days, the north coast is the natural base for calm swims, while Chaweng suits travellers who want restaurants and nightlife and do not mind livelier water.
| Area | Coast | In February |
|---|---|---|
| Chaweng | East | Busiest area, best nightlife; waves on windy days. |
| Bophut and Fisherman's Village | North | Calm water most days, restaurants on foot. |
| Maenam and Bang Po | North | Quiet, shallow, sheltered from the southeast wind. |
| Lamai | East | Lively and slightly cheaper than Chaweng; exposed to wind. |
| Lipa Noi and Taling Ngam | West | Calm, quiet, sunsets; transport needed. |
February is also a good month for the quiet west coast: dry, sunny and sheltered, with sunsets over the mainland. Compare every area in our where to stay in Koh Samui guide.
When you have narrowed it down, compare rooms for your exact dates on Agoda and read the cancellation terms of each rate before you pay: they differ from one offer to the next.
Koh Samui Weather February: Best Things to Do
February suits almost every activity on the island. The only thing to plan around is the wind.
| Activity | In February | Plan B |
|---|---|---|
| Ang Thong Marine Park | Open; best on calm days | Rebook if the operator postpones |
| Koh Tao and Koh Nang Yuan | Clear water, long crossing | Pick a calm day; consider a bigger boat |
| Pig Island and island-hopping | Usually running | Viewpoints and temples |
| Beaches | Excellent | Switch to the north coast if the east is choppy |
| Hiking and viewpoints | Dry trails, clear views | Go early before the heat |
Book boat trips early in your stay so a windy day does not cost you the outing, and check the wind forecast, not just rain, the evening before.
Wind, not rain, decides your boat day
Most February trip changes come from wind. Operators look at sea state on the morning, and a breezy spell can push a Koh Tao or Ang Thong trip by a day. Ask what the operator does if it cancels, and leave a spare day.
Sun protection
Clear skies and strong sun make sunburn the most common February problem. Reef-safe mineral sunscreen is required in Thai marine national parks, and a rash guard cuts how much you need. Avoid the beach between late morning and mid-afternoon if you burn easily.
Koh Tao and Koh Nang Yuan day trip
February's clear water makes this the month to try it, on a calm day. The crossing is long, so watch the wind forecast.
Check on the listing before you book
- How long the crossing takes
- The weather and cancellation policy
- Island entry fees on the day
Powered by GetYourGuide. Price, duration and availability depend on your date.
Koh Samui Weather February: Day Trips
Samui is the hub for day trips in the Gulf of Thailand. In February, the average wind at the Ko Samui station is 5.0 knots from the southeast, which decides how comfortable the crossings are. Shorter trips are the safer choice whenever the forecast is borderline.
| Trip | In February |
|---|---|
| Ang Thong Marine Park | Open outside the annual closure; can close for a day in rough seas. |
| Koh Phangan | Short, usually smooth crossing. |
| Koh Tao and Koh Nang Yuan | Clear water, but the long crossing is affected by the strong winds of this season. Pick a calm day. |
| Pig Island and the southern islands | Short trips, the easiest choice on a borderline day. |
Whatever the month, book day trips early in your stay so you can move them, and read each operator's weather and cancellation policy. Our guides to Ang Thong, getting to Koh Phangan and Koh Nang Yuan cover each trip in detail.
Koh Samui Weather February: Chinese New Year 2027
Chinese New Year falls on Saturday 6 February 2027. It is one of the busiest travel periods in Asia, and the days around it bring more visitors to Samui, higher demand for rooms and flights, and lion dances in some shops and hotels, especially in Nathon and the older Chinese shophouses.If your dates are flexible, the second half of February is usually easier to book. If you want to see the celebrations, book early and expect busier beaches and restaurants.
Valentine's Day on 14 February is another busy evening for restaurants with a sea view. Reserve ahead if you plan a special dinner.
Koh Samui Weather February: Who It Suits
February is the safest month for beach weather, and that is reflected in demand.
- Couples. Dry days, sunsets on the west coast and Valentine's dinners.
- Families. Reliable beach weather; the north coast keeps the water calmer for children.
- Divers and snorkellers. Clear water on calm days; Koh Tao trips are at their best when the wind drops.
- Budget travellers. Peak demand; book early or look at March.
- Photographers. Low cloud cover and long clear evenings.
Koh Samui Weather February: A 5-Day Plan
A plan that uses the dry weather and keeps a spare day for wind.
- Day 1. Arrive, north-coast beach and dinner in Fisherman's Village.
- Day 2. Ang Thong day trip if the wind is light.
- Day 3. Big Buddha and Wat Plai Laem in the morning, west-coast sunset in the evening.
- Day 4. Koh Tao and Koh Nang Yuan if calm; otherwise Pig Island or a beach day.
- Day 5. Lamai, Hin Ta Hin Yai and a last evening at a night market.
Koh Samui Weather February: Prices and Crowds
February is high season and, as the driest month, in high demand. Rates are typically higher than in the green season, and the days around Chinese New Year are the busiest.
Compare live prices for your exact dates rather than relying on percentages quoted online. The second half of the month is often easier to book.
Koh Samui Weather February: Packing and Getting Around
Pack for strong sun and breezy boat days.
- Reef-safe mineral sunscreen, hat and sunglasses
- A long-sleeved rash guard for snorkelling
- Seasickness tablets
- A light windbreaker for speedboats
- A dry bag
Roads are dry and easy. If you rent a scooter, wear a helmet and avoid riding at night; taxis and ride-hailing apps cover the main beaches. If you plan to ride, read our scooter rental guide first, and keep data on your phone with an eSIM for Thailand so you can check radar and messages on the road.
Koh Samui Weather February: Health and Safety
Temperatures in February are comfortable by tropical standards, with average highs of 29.4°C, but the sun is strong all year at this latitude. Use a hat and a high-factor sunscreen even on cloudy days, and drink plenty of water on boat trips.
Mosquitoes are fewer in the dry season but never absent. A repellent for dawn and dusk is still worth packing.
Helmets are compulsory for scooter riders in Thailand, and road accidents are the most common cause of serious injury for visitors. Ride slowly, avoid riding after drinking, and make sure your travel insurance covers scooters if you plan to ride.
Travel insurance that covers medical care and weather-related changes is worth having whatever the month.
Koh Samui Weather February: Getting Here
Most visitors arrive either by air into Samui's own airport, mainly with flights from Bangkok, or by flying or taking the train or bus to Surat Thani and crossing by ferry from Donsak to Nathon or Lipa Noi. The ferry route is usually cheaper and takes longer.
February includes Chinese New Year (6 February 2027), one of the busier travel periods, so book flights and ferry transfers early.
Crossings can be bumpy on windy days. Larger car ferries are steadier than fast boats if you are prone to seasickness.
Compare ferries and flights on 12Go for your dates, and see our Koh Samui ferry guide for the routes. Crossings to Koh Phangan and Koh Tao can be bumpy on windy days.
Koh Samui Weather February: Booking Tips
- Book rooms and flights early, especially around Chinese New Year (6 February 2027).
- Read the cancellation terms on each offer.
- Schedule boat trips early in your stay and check the wind forecast the evening before.
- Leave a buffer day before international flights.
Booking a few weeks ahead and reading the conditions of each rate matters more than chasing the lowest headline price.
Koh Samui Weather February vs January and March
| Month | Rainfall | Rainy days | High / low | Wind |
|---|---|---|---|---|
| January | 126.8 mm | 11.1 | 29.0°C / 24.2°C | 4.5 kn, east |
| February | 64.3 mm | 5.6 | 29.4°C / 24.9°C | 5.0 kn, southeast |
| March | 115.8 mm | 5.9 | 30.4°C / 25.4°C | 4.1 kn, southeast |
February is drier than both January and March on averages. March has almost as few rainy days but more rain when it falls, and it is hotter. To weigh every month side by side, use our best time to visit Koh Samui guide.
The bottom line on Koh Samui weather February
February is the driest month on Samui and the most reliable for beach weather. It is also the windiest, so pick the north or west coast on breezy days and keep boat trips flexible. Book early, especially around Chinese New Year on 6 February 2027.
Koh Samui Weather February: FAQ
Is February the best month to visit Koh Samui?
On rain alone, yes: it is the driest month on 30-year averages, with 64.3 mm over 5.6 rainy days. It is also the windiest month, so the east coast can be choppy.
Does it rain in Koh Samui in February?
Rarely. The Thai Meteorological Department's Ko Samui station averages 5.6 rainy days in February.
Is the sea rough in February?
On windy days, yes, mainly on east and south-east facing beaches. The north and west coasts are usually calmer.
When is Chinese New Year in 2027?
Saturday 6 February 2027. Expect busier hotels and flights in the days around it.
Is February good for Ang Thong and Koh Tao?
Yes on calm days, when the water is at its clearest. Watch the wind forecast and book early in your stay.
How hot is Koh Samui in February?
The average high is 29.4°C and the average low 24.9°C at the Ko Samui station, with low cloud cover and strong sun.
Is February good for families?
Yes. It is the driest month on averages, and the north coast keeps the water calmer for children on windy days.
Ready to book February?
Compare rooms for your dates now. Not sure which coast to pick? Ask a local on WhatsApp from the menu.
Comparing the dry-season months? See our March guide and January guide.
Sources for Koh Samui Weather February
Climate figures on this page come from the Thai Meteorological Department's 30-year climate normals. Other facts were checked on 13 November 2026 against the sources below. Weather, park rules and event dates can change, so confirm locally before you travel.
- Thai Meteorological Department: climatological data for the period 1991–2020 (Ko Samui station 48550)
- Thai Meteorological Department: forecasts and warnings
- Tourism Authority of Thailand
- China Travel: Chinese New Year 2027 date
- Asia Roamer: Ang Thong closure dates, citing the DNP 2026 list
How we put this guide together
Every climate figure on this page comes from one official dataset, the Thai Meteorological Department's 1991–2020 normals for the Ko Samui station, so the February numbers can be compared fairly with every other month in our series. We do not publish rain probabilities by week, sunshine hours or sea temperatures, because no official Samui series supports them.
Dates for parks, festivals and holidays were checked against the sources listed above. Prices change daily, so we point you to live availability instead of quoting rates. We update this guide when an official date or rule changes.
Disclosure: InsideSamui may earn a commission when you book through some links on this page, at no extra cost to you. Tour listings are provided by GetYourGuide. Prices, park rules and event dates change, so always confirm before you travel.