Seychelles
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
20.1km²
Area
21km
Coastline
751m
Highest point
150
People
30°C
Warmest sea
April
1,260km
To the mainland
When to go to Silhouette Island
Best for the beach from January to February and from June to August.
The sea is warmest in April (30 °C) and coolest in August (26 °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 of the Seychelles
Silhouette Island is an island in Seychelles. It covers 20.1 km², with 21 km of coastline. Its highest point rises to 751 m. About 150 people live on it. The nearest mainland is 1,260 km away.
Getting there
- Seychelles International Airport (SEZ)nearest airport with scheduled flights · 38 km in a straight lineCar hire at SEZ airport (Victoria)Discover Cars · Affiliate link↗
- 1,260 km from the mainlanddistance to the nearest continental coast
- From January to February and from June to Augustbest 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 Silhouette Island.
- 11beachesAnse La Passe, Anse Cipailles, Grand Barbe and 8 more
- 8viewpointsBelle Vue, Pointe Ramasse Tout, Pointe Etienne and 5 more
- 2marinasJetty Hilton Labriz
- 3named peaksMont Dauban, Mont Pot-a-Eau, Mont Poules Marrons
- 1waterfalls
- 2ruins and archaeological sites
- 4waymarked walking routes
- 2hotels, guesthouses and apartments
- 7restaurants, 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
Silhouette Island in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Silhouette Island, each with its own numbers.
2beaches and covesCoastya
5mountainsPeakyas
Highest point
590m
Mont Pot-a-Eau
according to Peakyas
Beach with the warmest sea
29.9°C
Anse Lascar
sea in the warmest month · according to Coastya
5 mountains
on Peakyas, the mountain atlas
- Mont Pot-a-Eau590m
- Castle Peak569m
- Mont Poules Marrons220m
- Mon Plaisir73m
- Mont Dauban
The shape of the land.
On average the island stands 0 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).
Size, for real
Next to islands you may know.
5 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 | 29 | 28 | 27 | 26 | 26 | 27 | 27 | 28 | 28 |
| Night low (°C) | 27 | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 27 | 27 |
| Sea (°C) | 28 | 29 | 29 | 30 | 29 | 28 | 26 | 26 | 27 | 28 | 28 | 28 |
| Rain (mm) | 215 | 102 | 103 | 108 | 96 | 70 | 52 | 50 | 93 | 107 | 123 | 174 |
| Wet days | 24 | 17 | 19 | 17 | 17 | 14 | 12 | 12 | 16 | 16 | 18 | 24 |
| Sun h/day | 6.7 | 8.0 | 8.5 | 8.8 | 8.4 | 7.6 | 7.8 | 8.0 | 7.8 | 8.5 | 8.6 | 7.8 |
| Wind (km/h) | 16 | 16 | 13 | 12 | 18 | 25 | 26 | 27 | 25 | 18 | 14 | 16 |
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 | +0.9 | +0.5 | +0.8 | +0.5 | +1.3 | +1.5 | +0.4 | −0.4 | −0.6 | +0.5 | +0.1 | ±0.0 |
| 2021 | −0.7 | ±0.0 | ±0.0 | +0.3 | ±0.0 | +0.1 | +0.2 | +0.2 | −0.1 | ±0.0 | +0.5 | +0.6 |
| 2022 | +0.2 | −0.3 | −0.1 | −0.5 | +0.2 | +0.3 | −0.4 | −0.1 | +0.3 | −0.2 | −0.1 | +0.1 |
| 2023 | −0.1 | −0.2 | +0.3 | +0.5 | +0.5 | +0.3 | +0.4 | +0.5 | +1.0 | +0.3 | +1.1 | +1.4 |
| 2024 | +1.3 | +1.5 | +1.0 | +0.9 | +0.6 | +1.0 | +0.5 | +0.4 | +0.5 | +0.9 | +0.5 | −0.6 |
| 2025 | −0.2 | +0.1 | ±0.0 | +0.5 | +0.9 | +0.7 | +0.4 | −0.4 | −0.7 | −0.4 | ±0.0 | +0.7 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
About these numbers
| Names, area, population | Wikidata (Q40413) · 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, Peakyas — 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.
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