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Isuru Senevi CC BY-SA 4.0 Wikimedia Commons

Lake Matano

Lake

On Sulawesi, Lake Matano ranks among Indonesia's deepest lakes, prized for clear water, endemic freshwater species and traditional fishing villages-diving, boat trips and village visits are common activities.

Lake Matano MakassarPantai BiraTana TorajaKendariLake PosoTogean IslandsGorontaloManadoBunakenLake Matano
In this guide

Lake Matano essentials

Address: Lake Matano, South Sulawesi, Indonesia
Hours: Open 24 hours
Admission: Free
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About Lake Matano

Lake Matano is a tectonic lake on the island of Sulawesi in Indonesia and is the deepest lake in the country. It is one of the group of Malili lakes on southeastern Sulawesi, notable for high levels of endemic species.

Clear deep waters and steep shorelines characterise the lake; it supports fisheries and research interest because of its unique fauna. Many fish and invertebrate species found there occur nowhere else.

Lake Matano occupies a rift-associated basin formed by tectonic processes and has existed long enough for significant biological endemism to develop. The lake has been used by local communities for fishing and transport for many generations.

The lake lies in South Sulawesi province on the southeastern peninsula of Sulawesi as part of the Malili lakes system, set into hilly terrain surrounding the basin.

  • Depth and biodiversity: The deepest lake in Indonesia and part of the Malili lake system, noted for very high levels of endemic freshwater biodiversity.
When to Go

Best Time to Visit Lake Matano

Dry season offers easier access to villages and boat trips; wet season enhances jungle scenery but can complicate roads.

Dry season
May-September · 24-30°C
Calmer waters and clearer skies - best for boating and village visits.
Wet season
November-March · 24-28°C
Heavier rains can make some dirt roads tricky but the surrounding forests are lush.

Weather & Climate near Lake Matano

Climate

Lake Matano's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 20°C to 30°C. Heavy rainfall (2087 mm/year), wettest in April.

Air Quality: AQI 60 Moderate
Best Time to Visit
OctoberSeptemberAugust
Temperature & Rainfall
Temperature Range
31°
Warmest Month
18°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Good 21° - 29° 25° 172 mm overcast 88% 1.1 m/s 2.3 extreme 12.1h
February Good 21° - 29° 25° 172 mm overcast 88% 1.1 m/s 2.4 extreme 12.1h
March Good 21° - 29° 25° 222 mm overcast 89% 1.1 m/s 2.5 extreme 12.0h
April Good 21° - 29° 25° 283 mm overcast 90% 1.2 m/s 2.3 extreme 11.9h
May Good 21° - 29° 25° 247 mm overcast 90% 1.1 m/s 1.9 very high 11.9h
June Good 21° - 28° 25° 196 mm overcast 90% 1.2 m/s 1.7 very high 11.9h
July Good 20° - 28° 24° 158 mm overcast 89% 1.4 m/s 1.7 very high 11.9h
August Very Good 20° - 29° 24° 121 mm overcast 87% 1.5 m/s 2.0 very high 11.9h
September Very Good 21° - 29° 25° 106 mm partly cloudy 85% 1.7 m/s 2.3 extreme 12.0h
October Very Good 21° - 30° 26° 94 mm partly cloudy 84% 1.5 m/s 2.4 extreme 12.1h
November Good 21° - 30° 26° 152 mm overcast 86% 1.2 m/s 2.3 extreme 12.1h
December Good 21° - 29° 25° 164 mm overcast 88% 1.2 m/s 2.2 extreme 12.1h
Getting There & Around

How to Get to Lake Matano

Access from Makassar involves a domestic flight or long road travel to the southeast of Sulawesi followed by local roads to the lake; the last stretches are usually on rural roads, so hiring a driver in Makassar or arranging local transport through regional operators is recommended.

Tips for Visiting Lake Matano

  • Hire a local boat with an experienced driver - hidden coves and caves on the shore are best reached this way.
  • Talk to elders in the lakeside villages about traditional tales; oral history about early mining and the lake's fishes is rich and specific.
  • Bring sunscreen and a hat: sun near the equator is relentless and shade is sparse along exposed shorelines.