Main image

NASA CC BY-SA 4.0 Wikimedia Commons

Yos Sudarso Island

Island

Yos Sudarso Island off South Papua's coast features mangrove fringes, remote villages and coastal fishing. The island attracts birdwatchers, local sailors and those moving between islands in the region.

Yos Sudarso Island JayapuraManokwariMeraukeTimikaYos Sudarso Island
In this guide

Yos Sudarso Island essentials

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

Yos Sudarso Island at a Glance

About Yos Sudarso Island

Yos Sudarso Island is a large, low-lying island off the southern coast of New Guinea in Indonesia’s South Papua province. It is noted for extensive wetlands and mangrove ecosystems rather than for dense urban settlement.

The island’s landscape is dominated by mangroves, swamps and tidal plains with limited infrastructure and few established tourist facilities. Wildlife and traditional coastal communities are the main points of interest, rather than developed attractions or accommodations.

Formerly known by other local names, the island was renamed for navy officer Yos Sudarso; administratively it has been part of Dutch New Guinea in the colonial period and later integrated into Indonesia. The island has seen limited development compared with the Papuan mainland.

Situated off the southern coast of the island of New Guinea, the island lies in the Arafura Sea and is part of Indonesia’s South Papua region, separated from the Papuan mainland by narrow straits.

  • Environment: Sparsely populated and characterised by extensive mangrove swamps, coastal lowlands and dense tropical vegetation.
  • Name and administration: Named after Indonesian naval officer Yos Sudarso; part of South Papua province administratively.
When to Go

Best Time to Visit Yos Sudarso Island

Visit during the dry season (May-October) for the most reliable weather and easier access to the island.

Dry season
May - October · 24-31°C
Drier, sunnier conditions with easier access by boat and better conditions for exploring coastal and inland areas.
Wet season
November - April · 24-31°C
Heavy tropical rain and higher humidity are typical; roads and landing areas can become difficult and travel may be disrupted.

Weather & Climate near Yos Sudarso Island

Climate

Yos Sudarso Island's climate is classified as Tropical Monsoon - Tropical Monsoon climate with consistently warm temperatures year-round. Temperatures range from 22°C to 32°C. Heavy rainfall (2028 mm/year), wettest in March.

Air Quality: AQI 40 Good
Best Time to Visit
AugustSeptemberJuly
Temperature & Rainfall
Temperature Range
37°
Warmest Month
19°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Acceptable 25° - 31° 33° 290 mm overcast 87% 2.1 m/s 2.2 extreme 12.4h
February Acceptable 24° - 31° 33° 258 mm overcast 87% 1.6 m/s 2.2 extreme 12.2h
March Acceptable 24° - 31° 33° 292 mm overcast 88% 1.5 m/s 2.2 extreme 12.0h
April Acceptable 24° - 31° 33° 233 mm overcast 89% 1.2 m/s 2.1 extreme 11.8h
May Acceptable 24° - 31° 32° 181 mm overcast 89% 1.4 m/s 1.8 very high 11.7h
June Very Good 23° - 30° 26° 105 mm overcast 87% 1.7 m/s 1.6 very high 11.6h
July Very Good 23° - 29° 26° 89 mm overcast 85% 1.7 m/s 1.7 very high 11.6h
August Very Good 22° - 29° 26° 67 mm overcast 83% 1.8 m/s 1.9 very high 11.8h
September Very Good 22° - 30° 26° 66 mm overcast 81% 1.7 m/s 2.2 extreme 12.0h
October Good 23° - 32° 30° 94 mm overcast 80% 1.4 m/s 2.3 extreme 12.2h
November Good 24° - 32° 32° 138 mm overcast 80% 1.1 m/s 2.3 extreme 12.3h
December Acceptable 24° - 32° 33° 215 mm overcast 83% 1.2 m/s 2.2 extreme 12.4h