Admiralty Chart No 2662 Ports in Makassar Strait, Published 1859, Large Corrections 1903.jpg

United Kingdom Hydrographic Office Public domain Wikimedia Commons

Laut Island

Island

Island off South Kalimantan's coast with coastal villages, mangroves and fishing communities; visitors encounter local seafood, shoreline scenery and modest beaches rather than resort infrastructure.

Laut Island PontianakPalangka RayaPangkalan BunTanjung PutingBanjarmasinBalikpapanSamarindaDerawan IslandsLaut Island
In this guide

Laut Island essentials

Country: Indonesia
Driest months: Aug-Oct
Pay in: Rupiah (Rp)
Language: Indonesian
Emergency: 110

Laut Island at a Glance

About Laut Island

Laut Island (Pulau Laut) is an island off the southeast coast of Borneo in South Kalimantan, Indonesia, forming the core of Kotabaru Regency. It is an inhabited island with urban and rural settlements and local economic activity centered on fishing and port services.

The island offers coastal landscapes, working ports and local beaches rather than developed mass-tourism infrastructure; fishing, small harbors and mangrove areas are the main features. Local markets and the town facilities in Kotabaru provide services for inter-island travel and regional commerce.

Pulau Laut has been part of local maritime networks of southern Borneo for centuries and was integrated into colonial and later Indonesian administrative structures; it now functions as the administrative heart of Kotabaru Regency.

Situated in the Java Sea off the southeastern shore of Kalimantan, the island lies within South Kalimantan province and is connected to the Kalimantan mainland by regular boat services.

  • Administrative role: Serves as the principal island in Kotabaru Regency and contains the regency’s administrative centre, Kotabaru town.
  • Access and transport: Access is by local ferries and boats from mainland Kalimantan; the island functions as a regional transport and service hub.

What to See#

  • Kotabaru town: The town of Kotabaru serves as the island’s administrative and commercial centre, with ports and ferry links connecting the island to the Kalimantan mainland.
  • Beaches and ports: Coastal beaches, small ports and mangrove-lined shores that support local fishing, aquaculture and small-scale tourism activities.
When to Go

Best Time to Visit Laut Island

The dry season (May-September) is best for visiting islands and marine activities.

Dry Season
May-September · 25-32°C (77-90°F)
Best boating and island-hopping weather; calmer seas and clearer skies.
Wet Season
October-April · 24-30°C (75-86°F)
Heavy rains and choppier seas-travel can be disrupted.
Shoulder Months
April and October · 24-31°C (75-88°F)
Variable weather; fewer visitors and lush green inland scenery.

Weather & Climate near Laut Island

Climate

Laut Island's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 22°C to 32°C. Heavy rainfall (2487 mm/year), wettest in March.

Air Quality: AQI 41 Good
Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
33°
Warmest Month
23°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Good 23° - 30° 27° 292 mm overcast 84% 1.3 m/s 2.2 extreme 12.2h
February Good 23° - 31° 27° 262 mm overcast 84% 1.4 m/s 2.2 extreme 12.1h
March Acceptable 23° - 31° 30° 295 mm overcast 83% 1.4 m/s 2.3 extreme 12.0h
April Acceptable 24° - 31° 31° 202 mm overcast 82% 1.3 m/s 2.2 extreme 11.9h
May Good 24° - 31° 31° 216 mm partly cloudy 83% 1.3 m/s 2.0 very high 11.8h
June Good 23° - 31° 27° 207 mm partly cloudy 84% 1.6 m/s 1.8 very high 11.8h
July Good 23° - 30° 27° 211 mm partly cloudy 83% 1.5 m/s 1.9 very high 11.8h
August Very Good 22° - 31° 27° 126 mm partly cloudy 80% 1.6 m/s 2.2 extreme 11.9h
September Good 23° - 31° 30° 137 mm partly cloudy 79% 1.7 m/s 2.3 extreme 12.0h
October Good 23° - 32° 30° 117 mm partly cloudy 78% 1.7 m/s 2.1 extreme 12.1h
November Good 23° - 31° 30° 163 mm overcast 79% 1.3 m/s 2.1 extreme 12.2h
December Good 23° - 31° 27° 259 mm overcast 82% 1.3 m/s 2.0 extreme 12.2h
Getting There & Around

How to Get to Laut Island

Access to Laut Island is normally by local boat from nearby mainland ports in South Kalimantan. The regional hub is Banjarmasin; from there overland travel to coastal launches followed by a short sea crossing is typical.

Tips for Visiting Laut Island

  • Marine conditions can be rough-book experienced local skippers for island travel.
  • Respect local fishing seasons and restricted zones.
  • Bring insect repellent and sun protection; coastal sun and mosquitoes are the two main hazards.