Papua New GuineaVolcanic island
Umboi Island
930 km² rising to 1,548 m out of the Solomon Sea.
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
930km²
Area
124km
Coastline
measured on a simplified outline
1,548m
Highest point
30°C
Warmest sea
December
786km
To the mainland
When to go to Umboi Island
Best for the beach from January to May.
The sea is warmest in December (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.
Volcanic island in Papua New Guinea
Umboi Island is an volcanic island in Papua New Guinea. It covers 930 km², with 124 km of coastline. Its highest point rises to 1,548 m. The nearest mainland is 786 km away.
Getting there
- Nadzab Tomodachi International Airport (LAE)nearest airport with scheduled flights · 166 km in a straight line
- Ferries1 ferry terminals on the island
- 786 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
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On the island
What you find on Umboi Island.
- 1ferry terminals
- 2named peaksMount Bel, Mount Tanglup
- 7volcanoes
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 382 m above the sea. 35 % of it is below 200 m.
- 17 %0–50 m
- 18 %50–200 m
- 32 %200–500 m
- 29 %500–1,000 m
- 4 %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.
20 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 | 27 | 28 | 28 | 29 | 29 |
| Night low (°C) | 28 | 27 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 27 | 27 | 28 |
| Sea (°C) | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 30 |
| Rain (mm) | 256 | 209 | 282 | 161 | 148 | 121 | 129 | 100 | 112 | 102 | 150 | 169 |
| Wet days | 27 | 25 | 27 | 24 | 23 | 21 | 20 | 16 | 17 | 18 | 21 | 25 |
| Sun h/day | 3.9 | 4.1 | 4.2 | 5.0 | 5.6 | 5.4 | 5.3 | 6.0 | 6.0 | 6.5 | 5.8 | 5.1 |
| Wind (km/h) | 20 | 21 | 18 | 15 | 19 | 25 | 32 | 32 | 28 | 22 | 15 | 15 |
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 | +0.5 | +0.2 | +0.7 | +0.3 | +0.5 | +0.7 | +0.9 | +1.0 | +0.9 | +1.0 | +0.5 | +0.4 |
| 2021 | +1.4 | +0.8 | +0.9 | +0.5 | +0.3 | +0.4 | +0.8 | +0.9 | +1.0 | +1.4 | +0.8 | +0.6 |
| 2022 | +0.1 | +0.2 | +0.8 | +0.7 | +1.0 | +1.2 | +1.3 | +1.6 | +1.7 | +1.5 | +1.3 | +0.5 |
| 2023 | +0.3 | +0.6 | +0.6 | +0.6 | +0.8 | +0.4 | +0.6 | +0.2 | −0.2 | −0.3 | −0.5 | −0.2 |
| 2024 | +0.4 | +0.3 | +0.7 | +0.9 | +0.6 | +0.6 | +0.7 | +1.0 | +0.8 | +0.8 | +0.7 | +0.3 |
| 2025 | +1.1 | +1.2 | +1.2 | +0.6 | +0.8 | +1.0 | +1.3 | +1.2 | +1.2 | +1.1 | +0.6 | +0.2 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Names, area, population | Wikidata (Q1858048) · CC0 |
|---|---|
| Outline | Natural Earth · public domain |
| 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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