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Hobe / Holger Behr CC BY-SA 4.0 Wikimedia Commons

D'Entrecasteaux Islands

Islands

Archipelago off southeastern Papua New Guinea with volcanic islands, dense rainforest and coral reefs; visitors come for remote diving, subsistence-culture encounters, birdwatching and game fishing around Milne Bay.

D'Entrecasteaux Islands Port MoresbyMount HagenKokoda TrackRabaulD'Entrecasteaux Islands
In this guide

D'Entrecasteaux Islands essentials

Country: Papua New Guinea
Driest months: Sep-Nov
Pay in: Kina (K)
Language: English
Emergency: 000

D'Entrecasteaux Islands at a Glance

About D'Entrecasteaux Islands

The D’Entrecasteaux Islands are an island group in Milne Bay Province, eastern Papua New Guinea. The main islands are Goodenough, Fergusson and Normanby, and the group is volcanic with steep terrain and dense vegetation.

These islands contain coastal villages and subsistence agriculture, and they support local biodiversity and marine environments. They were charted and named during European exploration in the late 18th century.

The group lies in the Solomon Sea off the eastern tip of Papua New Guinea and is several hundred kilometres from the national capital, Port Moresby.

Access is limited to local boat and occasional air connections; travel and services on the islands are at a subsistence and community scale.

  • Access: The islands are volcanic, rugged and populated by indigenous communities; they form part of Milne Bay Province and are accessed by infrequent local shipping or air services.

What to See#

  • Goodenough Island: Goodenough Island is one of the larger islands in the group and supports local villages and subsistence agriculture.
  • Fergusson Island: Fergusson Island is the largest of the chain with rugged volcanic terrain and several higher peaks.
  • Normanby Island: Normanby Island lies to the north of Fergusson and Goodenough and is similarly volcanic with coastal villages.
When to Go

Best Time to Visit D'Entrecasteaux Islands

Best visited during Papua New Guinea's dry season (May-October) when sea conditions are most favorable.

Dry season
May-Oct · 24-30°C
Calmer seas and better weather for boat access.
Wet season
Nov-Apr · 25-31°C
Higher rainfall and rougher seas; travel more difficult.

Weather & Climate near D'Entrecasteaux Islands

Climate

D'Entrecasteaux Islands'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 (3158 mm/year), wettest in July.

Air Quality: AQI 31 Good
Temperature & Rainfall
Temperature Range
30°
Warmest Month
20°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 22° - 29° 26° 276 mm - - 2.6 m/s - -
February - 22° - 30° 26° 254 mm - - 2.9 m/s - -
March - 22° - 30° 26° 265 mm - - 3.0 m/s - -
April - 21° - 29° 25° 325 mm - - 2.9 m/s - -
May - 21° - 28° 25° 282 mm - - 2.8 m/s - -
June - 21° - 27° 24° 261 mm - - 3.2 m/s - -
July - 20° - 27° 23° 376 mm - - 3.2 m/s - -
August - 20° - 27° 24° 267 mm - - 3.8 m/s - -
September - 21° - 28° 24° 210 mm - - 3.2 m/s - -
October - 21° - 28° 25° 240 mm - - 2.4 m/s - -
November - 21° - 29° 25° 182 mm - - 2.1 m/s - -
December - 22° - 30° 26° 220 mm - - 2.7 m/s - -
Getting There & Around

How to Get to D'Entrecasteaux Islands

Access is by boat from the Papua New Guinea mainland (Milne Bay Province) or by small aircraft to provincial airstrips where available; most visitors arrange transport via Milne Bay regional operators or scientific expeditions.

Tips for Visiting D'Entrecasteaux Islands

  • Travel to the D'Entrecasteaux Islands requires careful planning-most visits are by expedition cruises or chartered vessels.
  • Bring immunizations and medical kit; facilities are minimal and weather can force changes to itineraries.
  • Respect local Bougainville and Milne Bay Province regulations-these islands are part of local customary territories.