Skip to content
islandyas
EN

United Kingdom United KingdomIsland

Isle of Arran

428 km² rising to 874 m out of the Sea of the Hebrides.

When to go

Isle of Arran seen from space, cut out from the sea (Sentinel-2)
Isle of ArranLamlash
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

428km²

Area

103km

Coastline

874m

Highest point

Goat Fell

4,626

People

15°C

Warmest sea

August

656km

To the mainland

When to go to Isle of Arran

Good all year round.

The sea is warmest in August (15 °C) and coolest in March (7 °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.

The largest island in the Firth of Clyde, Scotland

Isle of Arran is an island in United Kingdom. It covers 428 km², with 103 km of coastline. Its highest point, Goat Fell, rises to 874 m. About 4,626 people live on it. The nearest mainland is 656 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 Isle of Arran.

  • 25beachesCleats Shore and 24 more
  • 14viewpointsGoat Fell, Glenashdale Falls Platform 1, Glenashdale Falls Platform 2 and 11 more
  • 4ferry terminalsLochranza Ferry Terminal, Brodick Ferry Terminal and 2 more
  • 73named peaksGoat Fell, Caisteal Abhail, Beinn Tarsuinn and 70 more
  • 8waterfallsGlenashdale Falls, Glenrosa Falls, Allt Mòr Waterfall and 5 more
  • 2castles and fortsBrodick Castle, Lochranza Castle
  • 72ruins and archaeological sitesMachrie Moor Stone Circle 2, Machrie Moor Stone Circle 3, Machrie Moor Stone Circle 1 and 69 more
  • 4waymarked walking routesArran Coastal Way, Arran Coastal Way: Alternative via Goat Fell, Goatfell Trail and 1 more
  • 11campsitesRunach Arainn, Seal Shore Camping, Lochranza Caravan and Campsite and 8 more
  • 51hotels, guesthouses and apartments
  • 27restaurants, 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

Isle of Arran in our other atlases

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

  • 1lakeLakeyas
  • 5waterfallsCascadyas
  • Largest lake

    0.29km²

    Loch Tanna

    according to Lakeyas

  • Warmest lake

    18.4°C

    Loch Tanna

    surface water, warmest month · according to Lakeyas

1 lakes

on Lakeyas, the lake atlas

  1. Loch Tanna0.29km²

Lakeyas is coming soonOpen Lakeyas ↗

5 waterfalls

on Cascadyas, the waterfall atlas

  1. Eas a' Chrannaig
  2. Eas Bàn
  3. Eas Geal
  4. Eas Mòr
  5. Easa Cumhang

Cascadyas is coming soonOpen Cascadyas ↗

The shape of the land.

On average the island stands 223 m above the sea. 48 % of it is below 200 m.

  • 12 %0–50 m
  • 36 %50–200 m
  • 47 %200–500 m
  • 5 %500–1,000 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.

Isle of Arran428 km²
Madeira Island742 km²
Malta247 km²

20 km

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

Towns on the island

  • Isle of Arran5,058 people
  • Lamlash1,030 people

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)7681013151716151297
Night low (°C)4345810121211964
Sea (°C)87781012141514131110
Rain (mm)1329990698192105120101136132131
Wet days211817161517201917202120
Sun h/day0.72.23.85.76.65.75.44.63.82.31.30.5
Wind (km/h)282624212018181922242626

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+0.4+0.2+0.1+0.3+0.5+0.5±0.0+0.1+0.4+0.4+0.6+0.6
2021+0.7−0.1±0.0−0.1+0.1+0.9+2.3+1.4+1.4+1.2+0.7+0.7
2022+0.9+0.9+1.1+0.8+1.1+0.3−0.1+0.5+1.0+0.6+1.1+1.0
2023+1.2+1.1+1.1+1.0+1.4+1.7+0.7+0.8+1.4+0.9+0.8+0.9
2024+1.0+1.2+1.1+1.0+1.8−0.3−0.4−0.3+0.1+0.3+0.5+0.6
2025+1.0+0.8+1.0+1.3+1.9+0.8+0.8+0.5+0.4+0.2+1.0+0.6

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Arran from South Eilean, Millport bay (149246826)
Bruce Cowan from Glasgow, UK · CC BY-SA 2.0
Arran @ New Years Eve 31.12.2009 - panoramio
Scotia · CC BY 3.0
Arran sunset (cropped)
Colin · CC BY-SA 3.0
Arran sunset
Colin · CC BY-SA 3.0

About these numbers

Names, area, populationWikidata (Q211873) · 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 waterfallsLakeyas, Cascadyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; 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