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Canada CanadaCanadian Arctic ArchipelagoIsland

Somerset Island

24,786 km² of land in the Northwest Passage.

When to go

Somerset Island seen from space, cut out from the sea (Sentinel-2)
N 20 km

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

In numbers

24,786km²

Area

1,030km

Coastline

measured on a simplified outline

481m

Highest point

0

People

1°C

Warmest sea

August

17km

To the mainland

When to go to Somerset Island

Good all year round.

The sea is warmest in August (1 °C) and coolest in January (-2 °C). The water never reaches 21 °C: bring a wetsuit.

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

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 Nunavut, Canada

Somerset Island is an island in Canada. It belongs to Canadian Arctic Archipelago. It covers 24,786 km², with 1,030 km of coastline. Its highest point rises to 481 m. Nobody lives on it. The nearest mainland is 17 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.

On the island

What you find on Somerset Island.

  • 134beaches
  • 7named peaksLocal H.P. (487), Mount Oliver, Mount Walker and 4 more
  • 10waterfalls

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

Somerset Island in our other atlases

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

  • 1beachCoastya
  • 5lakesLakeyas
  • Largest lake

    357km²

    Stanwell-Fletcher Lake

    according to Lakeyas

  • Warmest lake

    7.5°C

    Oliver Lake

    surface water, warmest month · according to Lakeyas

  • Beach with the warmest sea

    1.1°C

    Rum Cove

    sea in the warmest month · according to Coastya

1 beaches

on Coastya, the beach atlas

  1. Rum Covecove1.1°C

Open Coastya ↗

5 lakes

on Lakeyas, the lake atlas

  1. Stanwell-Fletcher Lake357km²
  2. Fiona Lake29.8km²
  3. Macgregor Laird Lake6.0km²
  4. Sunday Lake0.94km²
  5. Oliver Lake0.72km²

Lakeyas is coming soonOpen Lakeyas ↗

The shape of the land.

On average the island stands 233 m above the sea. 32 % of it is below 200 m.

  • 9 %0–50 m
  • 23 %50–200 m
  • 68 %200–500 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.

Somerset Island24,786 km²
Sicily25,615 km²
Ireland83,069 km²

200 km

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

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)-28-30-25-15-5396-2-11-21-25
Night low (°C)-33-35-32-22-11-130-6-16-25-30
Sea (°C)-2-2-2-2-1-1010-1-1-2
Rain (mm)151316182746535340322016
Wet days5455913141412964
Sun h/day—1.26.513.315.311.37.24.72.21.21.0—
Wind (km/h)181718181818181819181818

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

+1 warmer than usual −1 cooler than usual

About these numbers

Names, area, populationWikidata (Q212219) · 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
Beaches, mountains, lakes and waterfallsCoastya, Lakeyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST; HydroLAKES (Messager et al. 2016) · CC BY 4.0, LakeTEMP (Korver et al. 2024) · CC BY 4.0

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.Coming soonVisit