4245, Tambon Ko Lanta Yai, Amphoe Ko Lanta, Chang Wat Krabi 81150, Thailand - panoramio (1).jpg

Максим Улитин CC BY 3.0 Wikimedia Commons

Ko Lanta Yai

Island

Ko Lanta Yai in Krabi offers long beaches, dive trips to nearby reefs, seafood restaurants and a low‑key town atmosphere.

Ko Lanta Yai Map data © OpenStreetMap contributorsKrabiWat Tham SeuaKo Lanta Yai
In this guide

Ko Lanta Yai essentials

Country: Thailand
Driest months: Jan-Mar
Pay in: Baht (฿)
Language: Thai
Emergency: 191

Ko Lanta Yai at a Glance

About Ko Lanta Yai

Ko Lanta Yai is the largest inhabited island of the Ko Lanta island group in Krabi province, southern Thailand, and is a well-known tourist destination for beach stays and island access. It combines low-density resort areas, long beaches and local fishing villages.

Main visitor facilities cluster around the northern settlement of Saladan, which functions as the ferry port and service centre, while the southern end of the island is part of the Mu Ko Lanta National Park, protecting beaches and reef areas. The island is popular for relaxed beach tourism, snorkeling trips and as a base for exploring nearby islets.

Historically the island developed from fishing and local trade into a tourism destination from the late 20th century, with gradual expansion of accommodations and infrastructure tailored to international visitors. Conservation measures at the national park and local planning influence development along the coast.

Ko Lanta Yai lies off the Andaman coast of southern Thailand in Krabi province; the island is reachable by ferry from the mainland and other islands and features a mix of sandy shores, coastal roads and low-lying interior.

  • Transport and size: The island is the largest of the Lanta group in Krabi province and is served by regular ferries and road links that make it a popular base for multi-day stays and island-hopping trips.

What to See#

  • Saladan (main town): Saladan is the main settlement and ferry port at the northern tip of the island, providing accommodation, restaurants and connections to the mainland and other islands.
  • Mu Ko Lanta National Park: Mu Ko Lanta National Park occupies the southern tip of the island and adjacent islets, protecting beaches, reefs and a lighthouse area popular with visitors.
Things to Do
When to Go

Best Time to Visit Ko Lanta Yai

Ko Lanta Yai is most pleasant in the dry season (November-April) when seas are calm and outdoor activities are reliable.

Dry season (best)
November-April · 24-32°C
Calm seas, plenty of sunshine and the best conditions for swimming, snorkeling and boat travel.
Monsoon season
May-October · 24-30°C
Frequent heavy rain, rough seas and possible ferry cancellations; fewer daytrippers but limited water activities.

Weather & Climate near Ko Lanta Yai

Climate

Ko Lanta Yai's climate is classified as Tropical Monsoon - Tropical Monsoon climate with consistently warm temperatures year-round. Temperatures range from 22°C to 33°C. Heavy rainfall (2074 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 53 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
32°
Warmest Month
24°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Very Good 23° - 32° 30° 26 mm partly cloudy 80% 2.2 m/s 1.9 very high 11.6h
February Excellent 23° - 33° 31° 28 mm partly cloudy 76% 1.9 m/s 2.3 extreme 11.8h
March Very Good 23° - 33° 32° 56 mm partly cloudy 76% 1.7 m/s 2.5 extreme 12.0h
April Good 24° - 33° 33° 124 mm overcast 78% 1.9 m/s 2.4 extreme 12.2h
May Acceptable 24° - 32° 32° 205 mm overcast 79% 2.3 m/s 2.1 extreme 12.3h
June Acceptable 24° - 31° 31° 197 mm overcast 79% 2.6 m/s 2.0 very high 12.4h
July Good 24° - 31° 30° 240 mm overcast 79% 2.6 m/s 2.0 extreme 12.4h
August Good 24° - 31° 30° 298 mm overcast 80% 3.1 m/s 2.1 extreme 12.2h
September Good 23° - 30° 27° 319 mm overcast 81% 2.4 m/s 2.1 extreme 12.1h
October Good 23° - 30° 27° 294 mm overcast 82% 1.8 m/s 1.9 very high 11.8h
November Good 23° - 30° 27° 205 mm overcast 82% 1.9 m/s 1.7 very high 11.7h
December Very Good 22° - 30° 26° 82 mm overcast 81% 2.3 m/s 1.7 very high 11.6h
Getting There & Around

How to Get to Ko Lanta Yai

Ko Lanta Yai is reached by road and short ferry crossings from the mainland in Krabi Province. From Krabi Town or Krabi Airport you can take regular minibuses, local buses or drive south on Highway 4 toward Saladan/Ko Lanta; the journey typically takes around 2-3 hours including the short car ferry crossing that links the island with the mainland. Most services terminate at Saladan Pier (the island’s main town); from there the island’s beaches and villages are reachable by taxi, motorbike or local songthaews (short rides of a few kilometres).

Tips for Visiting Ko Lanta Yai

  • Use Saladan as your arrival point and base - it's the island's main pier and services hub, which makes onward transfers, rentals and early-morning departures easiest to arrange.
  • Visit quieter beaches and the national park at the southern tip (Lanta Old Town and Mu Ko Lanta National Park) in the late afternoon for sunset and far fewer day-trippers than the central beaches see during the day.
  • Rent a scooter or arrange a driver for a half-day to explore inland and the island's viewpoint lighthouses; many visitors stick to the north coast and miss scenic outlooks and the old wooden houses of Lanta Old Town.