Main image

Pierre André CC BY-SA 4.0 Wikimedia Commons

Khong Island

Island

On the Mekong's Si Phan Don, Khong Island (Don Khong) offers broad river channels, bikeable backroads and village markets; visitors take boat trips, watch river life and reach nearby waterfalls.

Khong Island Luang PrabangVientianeVang ViengPaksePhonsavanKhong Island
In this guide

Khong Island essentials

Country: Laos
Driest months: Dec-Feb
Pay in: Kip (₭)
Language: Lao

Khong Island at a Glance

About Khong Island

Khong Island (Don Khong) is the largest island in the Si Phan Don (Four Thousand Islands) archipelago on the Mekong River in Champasak province, southern Laos. It is the primary population and administrative centre for the island group.

The island is characterised by riverside villages, agricultural land and low-density development rather than dense tourism infrastructure. Travellers use the island as a base for short boat trips to neighbouring islands, local markets and simple guesthouses, and for observing Mekong river life and seasonal changes in water level.

The island has long been inhabited as part of the riverine communities of the lower Mekong and has served administrative and transport functions for the Khong District. Its patterns of settlement and economy have remained largely rural and tied to the river.

Khong Island sits in the Mekong River within Champasak province, in the southern part of Laos, among the cluster of islands collectively called Si Phan Don. It lies downstream of the major Mekong rapids and is accessed by boat from river piers serving the archipelago.

  • Role: Serves as the largest and most populous island of the Si Phan Don (Four Thousand Islands) group on the Mekong River, and functions as a local administrative and transport hub for the archipelago.
  • Access: Boat connections link the island to nearby river islands such as Don Det and Don Khone, and river transport is the primary way to move between islands.
When to Go

Best Time to Visit Khong Island

Best in the dry season (Nov-Apr) for easy cycling and stable river conditions.

Dry season (November-April)
November-April · 20-30°C (68-86°F)
Best time for cycling, boat rides, and general exploration - Mekong levels are lower and channels clearer.
Wet season (May-October)
May-October · 24-33°C (75-91°F)
Dramatic river levels, lush vegetation, and thicker mosquito presence; boat transport increases in importance.

Weather & Climate near Khong Island

Climate

Khong Island's climate is classified as Tropical Savanna - Tropical Savanna climate with hot summers (peaking in April) and warm winters (coldest in January). Temperatures range from 19°C to 34°C. Abundant rainfall (1901 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 85 Moderate
Best Time to Visit
JanuaryFebruaryDecember
Temperature & Rainfall
Temperature Range
44°
Warmest Month
10°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 19° - 30° 24° 2 mm mostly sunny 63% 1.6 m/s 1.8 very high 11.3h
February Ideal 21° - 32° 26° 9 mm mostly sunny 56% 1.9 m/s 1.9 very high 11.6h
March Excellent 23° - 34° 29° 19 mm partly cloudy 55% 1.6 m/s 1.9 very high 11.9h
April Very Good 25° - 34° 32° 74 mm partly cloudy 59% 1.7 m/s 2.1 extreme 12.3h
May Acceptable 25° - 33° 32° 218 mm overcast 72% 1.5 m/s 2.1 extreme 12.7h
June Acceptable 24° - 32° 32° 280 mm overcast 79% 1.7 m/s 2.1 extreme 12.8h
July Acceptable 24° - 31° 31° 329 mm overcast 84% 1.8 m/s 2.0 extreme 12.8h
August Acceptable 24° - 31° 31° 309 mm overcast 86% 1.7 m/s 2.0 very high 12.5h
September Good 24° - 30° 27° 427 mm overcast 87% 1.5 m/s 1.9 very high 12.1h
October Very Good 23° - 30° 26° 185 mm partly cloudy 82% 1.6 m/s 1.9 very high 11.7h
November Excellent 21° - 30° 25° 41 mm some cloud 77% 1.9 m/s 1.8 very high 11.3h
December Ideal 20° - 29° 24° 8 mm some cloud 70% 2.0 m/s 1.7 very high 11.2h
Getting There & Around

How to Get to Khong Island

Khong Island is accessible from the town of Pakse by road and ferry. The typical route is to drive south on Route 13 to Ban Nakasang and then take a local ferry to Don Khong. Buses and private taxis connect Pakse with the islands; local boat services link the different islands in the archipelago.

Tips for Visiting Khong Island

  • Rent a bicycle in Don Khong to make the 11-15 km circuit around the island - the route is flat and scenic.
  • Visit at dawn to see fishermen returning with their catch and to avoid the midday heat and the tourist boat traffic.
  • Bring cash for the small riverside restaurants (khai pa) that serve grilled fish and fresh spring rolls.