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Brunei BruneiIsland

Selirong Island

An island in the South China Sea.

When to go

In numbers

29m

Highest point

30°C

Warmest sea

June

986km

To the mainland

When to go to Selirong Island

Best for the beach from January to May.

The sea is warmest in June (30 °C) and coolest in February (28 °C). You can swim comfortably all year (21 °C or more).

Sea temperature (the water level) Air: night low to afternoon high Wet days Best months

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 Brunei

Selirong Island is an island in Brunei. Its highest point rises to 29 m. The nearest mainland is 986 km away.

Read more on Wikipedia

Getting there

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.

The shape of the land.

On average the island stands 17 m above the sea. 100 % of it is below 200 m.

  • 100 %0–50 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).

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)282828292929292929292928
Night low (°C)252525262726262626262626
Sea (°C)282828303030303030303029
Rain (mm)285143155212241258249229253312321333
Wet days231720252725252527302929
Sun h/day6.37.17.78.27.36.86.76.86.35.86.36.2
Wind (km/h)12121088899910910

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.

JanFebMarAprMayJunJulAugSepOctNovDec
2020+0.3+0.1+0.5+0.7+0.5+0.5+0.4+0.3+0.4+0.1+0.2+0.3
2021+0.3±0.0−0.2±0.0+0.3−0.1−0.4−0.3−0.5+0.8+0.8+0.7
2022+1.1+1.1+1.2+0.8+0.3±0.0−0.1+0.2+0.1−0.1+0.2+0.3
2023+1.1+1.3+0.3+0.8+0.6+0.3±0.0+0.7+0.7+1.2+1.2+1.5
2024+1.4+1.4+1.1+1.4+0.9+0.5+0.4+0.3+0.3+0.4+0.8+0.7
2025+1.3+1.2+0.7+0.4+0.3−0.1+0.3+0.2−0.1+0.3+0.2+0.6

+1 warmer than usual −1 cooler than usual

About these numbers

Names, area, populationWikidata (Q113213537) · CC0
OutlineNatural Earth · public domain
Sea temperatureNOAA OISST v2.1 · 1991–2020
ClimateNASA POWER · 1991–2020
Relief, 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Beaches, ports, lighthouses, trails© OpenStreetMap contributors · ODbL
TownsGeoNames · CC BY 4.0
ImagesEOX 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.

The family

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