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Ko Lanta

Islands

Ko Lanta in Krabi province offers long beaches, dive and snorkel trips, and a mix of guesthouses and seafood restaurants-appealing to travelers who want a quieter island base.

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

Ko Lanta essentials

Address: Ko Lanta, Krabi Province, Thailand

About Ko Lanta

Ko Lanta is an island district in Krabi province on Thailand’s Andaman coast, consisting of several islands with Ko Lanta Yai and Ko Lanta Noi the most significant. The area is widely known for sandy beaches, dive sites and a laid-back tourism scene.

The islands offer long beaches, coral reefs for diving and snorkeling, beachside restaurants and a range of accommodations concentrated on Ko Lanta Yai. Marine national park areas nearby protect reefs and smaller islands used for day trips.

Historically the islands were home to fishing communities and ethnic sea-gypsy populations; tourism expanded from the late 20th century and the archipelago remains a mix of local villages and tourist infrastructure. Conservation measures protect some marine and island habitats.

Ko Lanta sits in the Andaman Sea off southern Thailand’s west coast, administered from Krabi province; the islands are reachable by ferry from the mainland towns of Krabi and Trang and by road-plus-ferry links that serve the main island.

  • Main island: The archipelago’s main island, Ko Lanta Yai, is the primary base for accommodation, restaurants and ferries serving the group.
  • Access: Travel to the islands is commonly by car-and-ferry links or passenger ferries from mainland Krabi and Trang provinces, with a ring road on the main island that connects beaches and villages.

What to See#

  • Ko Lanta Yai and Ko Lanta Noi: The area comprises multiple islands; the two primary ones are Ko Lanta Yai, the main tourist and population centre, and Ko Lanta Noi, which is smaller and less developed.
  • Mu Ko Lanta National Park: Mu Ko Lanta National Park protects nearby islands and marine areas and includes beaches, coral reefs and forested hills that are popular with divers and boaters.
Things to Do
When to Go

Best Time to Visit Ko Lanta

Best November-March for dry weather and calm seas; shoulder seasons offer quieter conditions with more unpredictable weather.

High season (Nov-Mar)
November-March · 24-30°C (75-86°F)
Drier weather and calm seas - peak tourist season with the most activity.
Shoulder season (Apr-May, Sep-Oct)
April-May; September-October · 25-33°C (77-91°F)
Fewer crowds; some services reduce frequency but the island feels quieter and more relaxed.
Monsoon (Jun-Aug)
June-August · 25-31°C (77-88°F)
Short rains and occasional rough seas; many businesses remain open but expect interruptions.

Weather & Climate near Ko Lanta

Climate

Ko Lanta's climate is classified as Tropical Monsoon - Tropical Monsoon climate with consistently warm temperatures year-round. Temperatures range from 23°C to 34°C. Heavy rainfall (2058 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 53 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
37°
Warmest Month
19°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Very Good 23° - 32° 32° 26 mm partly cloudy 84% 1.9 m/s 1.9 very high 11.6h
February Excellent 23° - 33° 33° 27 mm partly cloudy 79% 1.8 m/s 2.3 extreme 11.8h
March Very Good 24° - 34° 33° 55 mm partly cloudy 77% 2.2 m/s 2.5 extreme 12.0h
April Good 24° - 34° 34° 121 mm overcast 80% 1.6 m/s 2.4 extreme 12.2h
May Acceptable 24° - 33° 34° 204 mm overcast 85% 1.7 m/s 2.1 extreme 12.3h
June Acceptable 25° - 32° 34° 195 mm overcast 86% 2.1 m/s 2.0 very high 12.4h
July Acceptable 24° - 31° 32° 236 mm overcast 86% 2.3 m/s 2.0 extreme 12.4h
August Acceptable 24° - 31° 32° 292 mm overcast 86% 2.6 m/s 2.1 extreme 12.2h
September Acceptable 24° - 31° 31° 311 mm overcast 88% 1.8 m/s 2.1 extreme 12.1h
October Acceptable 23° - 31° 27° 292 mm overcast 88% 1.7 m/s 1.9 very high 11.8h
November Acceptable 23° - 31° 27° 211 mm overcast 89% 1.8 m/s 1.7 very high 11.7h
December Good 23° - 31° 27° 88 mm overcast 87% 2.5 m/s 1.7 very high 11.6h
Getting There & Around

How to Get to Ko Lanta

Ko Lanta is served by ferries and speedboats from Ao Nang and Krabi on the mainland; the main ferry and pier operations use Saladan on the island’s north. Regular car ferries also link the island to the mainland via the National Highway network.

During high season services run frequently; in the low season check ferry schedules in advance and plan for possible weather-related changes.

Tips for Visiting Ko Lanta

  • Avoid the main high-season crush by visiting in shoulder months (May or October) when ferries still run but crowds thin.
  • Rent a scooter to cross the island - it's the most flexible way to reach beaches like Klong Dao and viewpoints inland.
  • If planning to island-hop, use Saladan Pier on the north as the transit hub for ferries to Phi Phi, Koh Lipe and the mainland.