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United Kingdom United KingdomInner HebridesIsland

Iona

8.5 km² of land in the Sea of the Hebrides.

When to go

Iona seen from space, cut out from the sea (Sentinel-2)
N 0.5 km

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

In numbers

8.5km²

Area

23km

Coastline

97m

Highest point

177

People

14°C

Warmest sea

August

779km

To the mainland

When to go to Iona

Good all year round.

The sea is warmest in August (14 °C) and coolest in March (8 °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 off the west coast of Scotland, UK

Iona is an island in United Kingdom. It belongs to Inner Hebrides. It covers 8.5 km², with 23 km of coastline. Its highest point rises to 97 m. About 177 people live on it. The nearest mainland is 779 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 Iona.

  • 23beachesThe Bay at the back of the Ocean, Martyrs Bay, Port Ban and 20 more
  • 2ferry terminalsIona, Iona Ferry Terminal
  • 6named peaksDùn Ì, Cnoc Druidean, Druim Dhughaill and 3 more
  • 5ruins and archaeological sitesMarble Quarry (Dis.), Dun Cul Bhuirg, Cladh an Diseart and 2 more
  • 1waymarked walking routesSt Conan Pilgrim Way
  • 1campsitesIona Campsite
  • 17hotels, guesthouses and apartments
  • 1restaurants, 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.

The shape of the land.

On average the island stands 28 m above the sea. 100 % of it is below 200 m.

  • 86 %0–50 m
  • 14 %50–200 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.

Iona8 km²
Capri10 km²
Manhattan54 km²

5 km

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

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)7789121415151412108
Night low (°C)55568111213121086
Sea (°C)98881012131414131210
Rain (mm)18013112284101104119142134174167182
Wet days232020171618202220222323
Sun h/day0.31.93.86.47.67.06.25.33.82.20.70.1
Wind (km/h)323027232119192024273030

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+0.3±0.0+0.2+0.4+0.3+0.3−0.2+0.2+0.1±0.0+0.4+0.3
2021−0.6−0.2+0.3+0.2±0.0−0.1+1.2+0.8+0.5+0.5+0.6+0.4
2022+0.5+0.6+0.8+0.6+0.8+0.6±0.0+0.3+0.9+0.7+1.2+0.9
2023+0.9+0.9+0.9+0.9+1.0+1.8+1.1+1.1+1.2+1.0+1.0+0.6
2024+0.8+1.0+0.8+0.7+1.2−0.1−0.1−0.2+0.1+0.2+0.5+0.6
2025+0.9+0.6+0.8+1.1+1.6+0.6+0.7+0.9+0.7+0.6+0.9+0.6

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Iona Abbey - October 2018 - Andrew Gray - 12
Andrew Gray · CC BY-SA 4.0
TyIonaBayAtTheBackOfTheOcean20030825r19f19
Torsten Henning · Public domain
Iona2may11
Clydecoast · CC BY-SA 3.0
Iona (15020668711)
Lisa Stevens from Sutton Coldfield, UK · CC BY-SA 2.0

About these numbers

Names, area, populationWikidata (Q610) · 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

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.

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