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United States United StatesIsland

Nantucket

119 km² of land in the Atlantic Ocean.

When to go

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

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

In numbers

119km²

Area

120km

Coastline

9m

Highest point

Sankaty Head

14,255

People

20°C

Warmest sea

August

24km

To the mainland

When to go to Nantucket

Best to visit from July to August.

The sea is warmest in August (20 °C) and coolest in February (4 °C). The water never reaches 21 °C: bring a wetsuit.

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 of Massachusetts, United States

Nantucket is an island in United States. It covers 119 km², with 120 km of coastline. Its highest point, Sankaty Head, rises to 9 m. About 14,255 people live on it. The nearest mainland is 24 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 Nantucket.

  • 39beachesCisco Beach, Cliff Beach, Coatue Beach and 36 more
  • 3lighthousesGreat Point Light, Brant Point Light, Sankaty Head Light
  • 4ferry terminalsSteamship Authority Terminal, Straight Wharf - Nantucket, Hy-Line Terminal and 1 more
  • 11named peaksFolger Hill, Shawkemo Hills, Sauls Hills and 8 more
  • 2ruins and archaeological sitesSankaty Head Light, Lighthouse Keeper's Dwelling
  • 1campsitesCamp Richard Lodge
  • 3hotels, guesthouses and apartments
  • 19restaurants, 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

Nantucket in our other atlases

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

  • 20beaches and covesCoastya
  • 1lakeLakeyas
  • Largest lake

    0.33km²

    North Head Long Pond

    according to Lakeyas

  • Warmest lake

    24.9°C

    North Head Long Pond

    surface water, warmest month · according to Lakeyas

  • Beach with the warmest sea

    19.9°C

    Childrens Beach

    sea in the warmest month · according to Coastya

20 beaches

on Coastya, the beach atlas

  1. South Shore19.6°C
  2. Childrens Beach19.9°C
  3. Cliff Beach19.9°C
  4. Coatue Beach19.9°C
  5. Clean Shore19.9°C
  6. Jetties Beach19.9°C
  7. Pest House Shore19.9°C
  8. Rest House Shore19.9°C

12 more on CoastyaOpen Coastya ↗

1 lakes

on Lakeyas, the lake atlas

  1. North Head Long Pond0.33km²

Lakeyas is coming soonOpen Lakeyas ↗

The shape of the land.

On average the island stands 9 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.

Nantucket119 km²
Malta247 km²
Santorini76 km²

10 km

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

Towns on the island

  • Nantucket7,446 people

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)4458121721222016117
Night low (°C)002610151920181383
Sea (°C)5446101418201815118
Rain (mm)9187106978684727495114106114
Wet days11911111010910910912
Sun h/day2.84.35.46.87.37.78.37.97.25.23.72.4
Wind (km/h)313029262321202022272830

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+0.7+1.6+1.4+0.9+0.4+1.3+2.2+2.4+1.2+1.2+1.6+0.6
2021+0.3−0.2+0.1+1.1+1.8+2.1+2.0+2.5+1.9+2.3+1.1+0.7
2022+0.6+0.6+1.1+1.1+0.5+1.0+0.7+0.8+1.1+0.4+2.1+0.5
2023+1.0+1.3+1.3+2.0+1.6+0.8+0.9−0.1+0.5+1.0+0.6+0.4
2024+0.2+0.1+1.6+0.9+0.7+1.5+0.2−0.3±0.0+0.7+1.1−0.2
2025−0.8−0.8+0.3+0.4+0.7+0.1+0.3−0.3+0.7+0.8−0.4−1.0

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Brant Point Lighthouse, Nantucket, MA - 2
Hazal Ozturk · CC BY-SA 4.0
Light house at Brant point in Nantucket harbor
Frank van Mierlo · Attribution
Nantucket Town & County Building
Kenneth C. Zirkel · CC BY-SA 4.0
2015 Nantucket MA Main Street view
Kenneth C. Zirkel · CC BY-SA 4.0

About these numbers

Names, area, populationWikidata (Q49149) · 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, 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