Bangladesh
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
257km²
Area
55km
Coastline
measured on a simplified outline
16m
Highest point
350,000
People
29°C
Warmest sea
October
13km
To the mainland
When to go to Sandwip
Best for the beach from February to March and from November to December.
The sea is warmest in October (29 °C) and coolest in January (22 °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 on the Chattogram District of Bangladesh
Sandwip is an island in Bangladesh. It covers 257 km², with 55 km of coastline. Its highest point rises to 16 m. About 350,000 people live on it. The nearest mainland is 13 km away.
Getting there
- Shah Amanat International Airport (CGP)nearest airport with scheduled flights · 42 km in a straight line
- 13 km from the mainlanddistance to the nearest continental coast
- From February to March and from November to Decemberbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
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The shape of the land.
On average the island stands 6 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.
20 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Sandwīp52,152 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 23 | 26 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 27 | 24 |
| Night low (°C) | 16 | 19 | 23 | 26 | 28 | 28 | 28 | 27 | 27 | 26 | 22 | 18 |
| Sea (°C) | 22 | 23 | 26 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 27 | 24 |
| Rain (mm) | 9 | 21 | 44 | 130 | 307 | 556 | 802 | 548 | 411 | 251 | 59 | 15 |
| Wet days | 1 | 2 | 5 | 10 | 19 | 24 | 28 | 27 | 24 | 14 | 3 | 1 |
| Sun h/day | 8.1 | 8.7 | 8.6 | 8.0 | 6.7 | 4.4 | 4.6 | 5.2 | 5.5 | 6.7 | 8.2 | 7.9 |
| Wind (km/h) | 12 | 11 | 12 | 16 | 17 | 22 | 23 | 20 | 16 | 12 | 12 | 12 |
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 | −1.0 | −1.1 | −0.3 | +0.4 | +0.2 | +0.3 | +0.8 | +0.5 | +0.8 | +0.8 | +0.5 | −0.4 |
| 2021 | +0.1 | −0.9 | +0.6 | +0.7 | +1.5 | +1.2 | +0.7 | +0.6 | +0.4 | +1.1 | −0.2 | −0.2 |
| 2022 | −0.1 | −1.2 | ±0.0 | +0.6 | +0.7 | ±0.0 | +1.4 | +1.6 | +1.0 | +0.4 | +0.1 | +0.2 |
| 2023 | ±0.0 | +0.6 | +0.5 | +1.2 | +1.0 | +1.0 | +1.0 | +1.0 | +0.8 | +0.2 | +0.5 | +0.5 |
| 2024 | −0.3 | −0.6 | −0.2 | +1.2 | +1.4 | +1.0 | +1.0 | +0.7 | +0.9 | +0.1 | +0.8 | −0.3 |
| 2025 | +0.2 | +1.0 | +0.8 | +0.7 | +1.2 | +0.7 | +0.5 | +0.9 | +1.1 | +0.9 | +0.4 | −0.1 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
About these numbers
| Names, area, population | Wikidata (Q724079) · 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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