Papua New GuineaVolcanic island
Manam
81.2 km² rising to 1,807 m out of the Bismarck Sea.
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
81.2km²
Area
35km
Coastline
1,807m
Highest point
Manam
10,677
People
30°C
Warmest sea
May
776km
To the mainland
When to go to Manam
Best for the beach from January to May.
The sea is warmest in May (30 °C) and coolest in August (28 °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 Papua New Guinea
Manam is an volcanic island in Papua New Guinea. It covers 81.2 km², with 35 km of coastline. Its highest point, Manam, rises to 1,807 m. About 10,677 people live on it. The nearest mainland is 776 km away.
Getting there
- Madang Airport (MAG)nearest airport with scheduled flights · 150 km in a straight line
- 776 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 Manam.
- 1volcanoesManam Volcano
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
Cross-checked with our atlases
Manam in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Manam, each with its own numbers.
1mountainPeakyas
Highest point
1,807m
prominence 1,807 m · according to Peakyas
The shape of the land.
On average the island stands 372 m above the sea. 46 % of it is below 200 m.
- 14 %0–50 m
- 32 %50–200 m
- 25 %200–500 m
- 20 %500–1,000 m
- 8 %1,000–2,000 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.
10 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
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 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Night low (°C) | 27 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 27 |
| Sea (°C) | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 28 | 29 | 29 | 29 | 30 |
| Rain (mm) | 204 | 181 | 238 | 206 | 216 | 175 | 143 | 129 | 162 | 148 | 200 | 200 |
| Wet days | 26 | 25 | 27 | 26 | 25 | 24 | 22 | 20 | 20 | 23 | 25 | 26 |
| Sun h/day | 5.1 | 5.3 | 5.3 | 5.6 | 6.0 | 5.7 | 5.5 | 6.5 | 6.1 | 6.4 | 5.6 | 5.4 |
| Wind (km/h) | 14 | 14 | 13 | 10 | 10 | 12 | 14 | 15 | 13 | 11 | 10 | 11 |
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 | +0.1 | −0.3 | +0.2 | ±0.0 | +0.4 | +0.3 | +0.6 | +0.7 | +0.7 | +0.7 | +0.7 | +0.9 |
| 2021 | +1.9 | +1.0 | +0.7 | +0.6 | +0.4 | +0.3 | +0.8 | +0.7 | +0.8 | +0.9 | +1.0 | +0.6 |
| 2022 | +0.3 | +0.4 | +0.9 | +0.6 | +0.9 | +1.1 | +1.1 | +1.3 | +1.3 | +1.1 | +1.2 | +0.4 |
| 2023 | +0.5 | +0.7 | +0.7 | +0.6 | +0.7 | +0.3 | +0.3 | +0.1 | −0.1 | −0.1 | −0.4 | −0.4 |
| 2024 | +0.4 | ±0.0 | +0.7 | +1.0 | +0.8 | +0.2 | +0.4 | +0.6 | +0.6 | +0.5 | +0.6 | +0.5 |
| 2025 | +1.4 | +1.6 | +1.5 | +0.9 | +0.8 | +0.8 | +1.0 | +0.7 | +0.8 | +0.7 | +0.4 | +0.5 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Names, area, population | Wikidata (Q1888667) · 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 |
| Beaches, mountains, lakes and waterfalls | Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.



