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).
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.
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
sea in the warmest month · according to Coastya
3 beaches
on Coastya, the beach atlas
- Siloso Beach30.3°C
- Tanjong Beach30.3°C
- Chumpang Baycove30.3°C
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.
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 28 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 |
| Night low (°C) | 25 | 25 | 26 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 26 |
| Sea (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 |
| Rain (mm) | 236 | 108 | 177 | 203 | 202 | 164 | 168 | 166 | 165 | 206 | 294 | 302 |
| Wet days | 21 | 15 | 23 | 27 | 27 | 23 | 23 | 22 | 22 | 26 | 28 | 28 |
| Sun h/day | 4.9 | 6.0 | 5.8 | 5.7 | 5.4 | 5.3 | 5.1 | 4.9 | 4.4 | 4.5 | 4.4 | 4.2 |
| Wind (km/h) | 17 | 17 | 13 | 9 | 10 | 12 | 14 | 14 | 12 | 10 | 10 | 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 | +0.1 | +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.




Nearby
More islands nearby.
Singapore Island
Batam Island
Pulau Ubin
Bintan Island
Karimun Island
Bengkalis Island
Malacca Island
Tioman IslandAbout these numbers
| Names, area, population | Wikidata (Q870844) · 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 | Coastya — 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.