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Singapore SingaporeIsland

Sentosa

4.9 km² of land in the Singapore Strait.

When to go

Sentosa seen from space, cut out from the sea (Sentinel-2)
Sentosa
N 0.5 km

Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.

In numbers

4.9km²

Area

14km

Coastline

100m

Highest point

30°C

Warmest sea

May

23km

To the mainland

When to go to Sentosa

Best for the beach from January to May.

The sea is warmest in May (30 °C) and coolest in January (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 off the south coast of the main island of Singapore

Sentosa is an island in Singapore. It covers 4.9 km², with 14 km of coastline. Its highest point rises to 100 m. The nearest mainland is 23 km away.

Read more on Wikipedia

Getting there

  • Seletar Airport (XSP)nearest airport with scheduled flights · 19 km in a straight lineCar hire at SIN airport (Singapore)Discover Cars · Affiliate link
  • FerriesHarbour Bay (Batam, Indonesia) - Harbourfront (Singapore), Sekupang (Batam, Indonesia) - Harbourfront (Singapore), Harbourfront (Singapore) - Tanjung Balai Karimun (Karimun, Indonesia), Batam Centre-Harbourfront
  • 23 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 Sentosa.

  • 11beachesPalawan Beach, Siloso Beach, Tanjong Beach and 8 more
  • 3viewpointsSouthern Ridges, Dragon's Teeth Gate Viewpoint, Lookout Loop
  • 4marinasOne 15 Marina, Singapore Cruise Centre, Sentosa Jetty @Cove and 1 more
  • 2named peaksMount Serapong, Mount Imbiah
  • 3waterfallsImbiah Falls, Rock Dragon, Tempinis Cascade
  • 4castles and fortsFort Imbiah, Fort Serapong ruins, Fort Siloso and 1 more
  • 1ruins and archaeological sitesJetty Ruin
  • 18hotels, guesthouses and apartments
  • 81restaurants, 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.

Cross-checked with our atlases

Sentosa in our other atlases

Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Sentosa, each with its own numbers.

  • 3beaches and covesCoastya
  • Beach with the warmest sea

    30.3°C

    Siloso Beach

    sea in the warmest month · according to Coastya

3 beaches

on Coastya, the beach atlas

  1. Siloso Beach30.3°C
  2. Tanjong Beach30.3°C
  3. Chumpang Baycove30.3°C

Open Coastya ↗

The shape of the land.

On average the island stands 16 m above the sea. 100 % of it is below 200 m.

  • 96 %0–50 m
  • 4 %50–200 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.

Sentosa5 km²
Capri10 km²
Manhattan54 km²

5 km

All outlines drawn to the same scale (Natural Earth and OpenStreetMap).

Towns on the island

  • Sentosa1,940 people

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)282929303029292929292928
Night low (°C)252526272828272727272726
Sea (°C)282829303030302929292928
Rain (mm)236108177203202164168166165206294302
Wet days211523272723232222262828
Sun h/day4.96.05.85.75.45.35.14.94.44.54.44.2
Wind (km/h)17171391012141412101015

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+0.1+0.5+0.7+0.6+0.5+0.9+0.4+0.8+0.5+0.1+0.2+0.8
2021±0.0−0.2+0.3+0.2+0.1+0.3+0.2+0.2+0.2+0.5+0.4+0.5
2022+0.4+0.3+0.4+0.3+0.3+0.2+0.2+0.2±0.0−0.1±0.0+0.2
2023+0.1−0.3−1.0−0.3+0.2+0.2+0.2+0.5+0.4+0.9+1.3+0.7
2024+0.5+0.8+0.6+1.0+0.6+0.9+0.6+0.6+0.7+0.6+1.0+0.8
2025−0.2−0.1±0.0−0.2+0.1+0.5+0.3+0.4−0.1+0.2+0.4+0.3

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

About these numbers

Names, area, populationWikidata (Q870844) · CC0
Outline© OpenStreetMap contributors · ODbL
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
Beaches, mountains, lakes and waterfallsCoastya — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST

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.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.You are here
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit