Indonesia
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
1,904km²
Area
261km
Coastline
127m
Highest point
30°C
Warmest sea
October
1,145km
To the mainland
When to go to Biak Island
Best for the beach from January to May.
The sea is warmest in October (30 °C) and coolest in March (29 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in Biak Numfor Regency, Papua Province, Indonesia
Biak Island is an island in Indonesia. It belongs to Schouten Islands. It covers 1,904 km², with 261 km of coastline. Its highest point rises to 127 m. The nearest mainland is 1,145 km away.
Getting there
- Frans Kaisiepo Airport (BIK)airport on the island, with scheduled flightsCar hire at DPS airport (Kuta, Badung)Discover Cars · Affiliate link↗
- FerriesBiak - Jayapura, Numfor - Biak, Biak - Serui, Nabire - Biak
- 1,145 km from the mainlanddistance to the nearest continental coast
- From January to Maybest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
On the island
What you find on Biak Island.
- 1beaches
- 1viewpointsOreng river crossing
- 4lighthouses
- 2ferry terminalsMokmer Biak, Biak Port
- 1marinasNirmala Dive Resort Biak & Yacht Club
- 1named peaksSombunen
- 4hotels, guesthouses and apartments
- 4restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 131 m above the sea. 81 % of it is below 200 m.
- 12 %0–50 m
- 69 %50–200 m
- 19 %200–500 m
- <1 %500–1,000 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
50 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Biak41,731 people
- Insrom3,452 people
- Wardono census figure
- Koremno census figure
- Bosnikno census figure
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 |
| Night low (°C) | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 |
| Sea (°C) | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 30 | 30 | 30 |
| Rain (mm) | 268 | 208 | 268 | 239 | 213 | 248 | 241 | 209 | 205 | 206 | 196 | 267 |
| Wet days | 28 | 24 | 28 | 27 | 26 | 27 | 27 | 25 | 25 | 24 | 25 | 28 |
| Sun h/day | 5.2 | 5.4 | 5.9 | 5.7 | 6.1 | 5.1 | 5.3 | 5.8 | 5.8 | 6.0 | 5.1 | 5.0 |
| Wind (km/h) | 13 | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 10 | 11 | 12 | 12 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.2 | +0.3 | +0.6 | +0.6 | +0.6 | +0.5 | +0.5 | +0.7 | +0.5 | +0.6 | +0.7 | +0.7 |
| 2021 | +1.1 | +1.1 | +0.9 | +0.4 | +0.4 | +0.2 | +0.2 | +0.2 | +0.4 | +0.4 | +0.6 | +0.5 |
| 2022 | +0.4 | +0.5 | +0.8 | +0.4 | +0.4 | +0.4 | +0.3 | +0.3 | +0.4 | +0.1 | +0.5 | +0.5 |
| 2023 | +0.4 | +0.5 | +0.7 | +0.6 | +0.5 | +0.3 | +0.2 | +0.4 | +0.3 | +0.1 | +0.2 | +0.2 |
| 2024 | +0.6 | +0.2 | +0.6 | +0.8 | +0.6 | +0.5 | +0.4 | +0.4 | +0.5 | +0.3 | +0.7 | +0.6 |
| 2025 | +1.0 | +1.0 | +1.2 | +0.7 | +0.5 | +0.5 | +0.6 | +0.3 | +0.4 | +0.4 | +0.4 | +0.3 |
+1 warmer than usual −1 cooler than usual
Nearby
More islands nearby.
About these numbers
| Names, area, population | Wikidata (Q855314) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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