Main image

Ilham Mufti Laksono CC BY-SA 4.0 Wikimedia Commons

Lamandau River

Stream

The Lamandau River runs through Indonesian Borneo's lowland rainforest and wildlife reserves; riverboat trips and lodge-based tours are used to see jungle wildlife and conservation projects, including orangutan rehabilitation efforts in the region.

Lamandau River PontianakPalangka RayaPangkalan BunTanjung PutingBanjarmasinBalikpapanSamarindaDerawan IslandsLamandau River
In this guide

Lamandau River essentials

Address: Lamandau River, Central Kalimantan / West Kalimantan, Indonesia
GoogleAppleOSM

About Lamandau River

The Lamandau River flows through Central Kalimantan on the island of Borneo and drains a basin of lowland tropical forest. It is a significant river for local communities, wildlife habitat and access into interior forest areas.

Sections of the river and its surrounding forest are important for biodiversity and have been the focus of orangutan conservation and rehabilitation efforts in the region. The river corridor is used for small-boat transport and as an access route to settlements and conservation sites.

The river runs through Central Kalimantan province and connects forested inland areas with larger river systems and downstream waterways in Borneo’s lowlands.

  • Conservation and transport: River transport is important locally and the river basin contains areas of lowland tropical forest that are important for wildlife including orangutans.
When to Go

Best Time to Visit Lamandau River

Dry months (June-September) are generally best for river travel and wildlife viewing; wet season can complicate logistics.

Dry season
June-September · 25-32°C
Lower river levels make travel predictable and wildlife sightings at river edges more likely.
Wet season
November-March · 24-30°C
Higher water levels open floodplain channels; travel can be more difficult and mosquitoes more plentiful.

Weather & Climate near Lamandau River

Climate

Lamandau River's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 22°C to 31°C. Heavy rainfall (2714 mm/year), wettest in December.

Air Quality: AQI 51 Moderate
Best Time to Visit
AugustJanuaryJune
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° 230 mm overcast 87% 1.6 m/s 2.1 extreme 12.1h
February Acceptable 23° - 31° 27° 234 mm overcast 86% 1.5 m/s 2.2 extreme 12.1h
March Acceptable 23° - 31° 27° 274 mm overcast 84% 1.4 m/s 2.3 extreme 12.0h
April Acceptable 23° - 31° 30° 274 mm overcast 84% 1.5 m/s 2.1 extreme 11.9h
May Acceptable 24° - 31° 31° 258 mm overcast 85% 1.5 m/s 2.0 extreme 11.9h
June Good 23° - 31° 31° 192 mm partly cloudy 85% 1.6 m/s 1.9 very high 11.9h
July Good 23° - 31° 27° 169 mm partly cloudy 84% 1.7 m/s 1.9 very high 11.9h
August Good 23° - 31° 27° 146 mm partly cloudy 81% 1.9 m/s 2.0 very high 11.9h
September Acceptable 23° - 31° 30° 169 mm overcast 80% 2.0 m/s 1.9 very high 12.0h
October Acceptable 23° - 31° 30° 192 mm overcast 81% 1.6 m/s 1.9 very high 12.1h
November Good 23° - 31° 27° 279 mm overcast 83% 1.5 m/s 2.0 extreme 12.1h
December Good 23° - 30° 27° 297 mm overcast 87% 1.6 m/s 2.0 extreme 12.1h
Getting There & Around

How to Get to Lamandau River

Access is typically from Bornean towns with river transport connections; many visitors travel to regional hubs (e.g., Pangkalan Bun) and arrange river journeys with licensed guides and conservation groups. Travel requires permits and local coordination.

Tips for Visiting Lamandau River

  • River trips are best planned with an authorized guide experienced in remote Bornean rivers and wildlife spotting.
  • Bring lightweight long-sleeve clothing and insect protection; the rainforest is humid and insect-rich.
  • Support local conservation and community-based tourism initiatives that protect orangutan habitat.