Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
18.2km²
Area
36km
Coastline
16m
Highest point
514
People
15°C
Warmest sea
August
715km
To the mainland
When to go to Arranmore
Good all year round.
The sea is warmest in August (15 °C) and coolest in February (8 °C). The water never reaches 21 °C: bring a wetsuit.
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 Ireland
Arranmore is an island in Ireland. It covers 18.2 km², with 36 km of coastline. Its highest point rises to 16 m. About 514 people live on it. The nearest mainland is 715 km away.
Getting there
- Donegal Airport (CFN)nearest airport with scheduled flights · 14 km in a straight lineCar hire at CFN airport (Donegal)Discover Cars · Affiliate link↗
- FerriesFerry Arranmore
- 715 km from the mainlanddistance to the nearest continental coast
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 Arranmore.
- 10beachesAn Trá Dhearg, Tracashel and 8 more
- 1viewpoints
- 1lighthousesAranmore Lighthouse
- 1ferry terminals
- 4named peaksCluidaniller West Top, Frenchman's Hill, Cronagarn and 1 more
- 6ruins and archaeological sites
- 1waymarked walking routesArranmore Way
- 1campsitesArranmore Holiday Village
- 4hotels, 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.
Cross-checked with our atlases
Arranmore in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Arranmore, each with its own numbers.
3mountainsPeakyas
The shape of the land.
On average the island stands 104 m above the sea. 98 % of it is below 200 m.
- 24 %0–50 m
- 73 %50–200 m
- 2 %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.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 9 | 8 | 9 | 10 | 12 | 14 | 15 | 16 | 15 | 13 | 11 | 9 |
| Night low (°C) | 6 | 6 | 6 | 8 | 10 | 12 | 13 | 14 | 13 | 11 | 9 | 7 |
| Sea (°C) | 9 | 8 | 8 | 9 | 11 | 13 | 15 | 15 | 15 | 13 | 12 | 10 |
| Rain (mm) | 158 | 121 | 108 | 80 | 95 | 99 | 114 | 126 | 113 | 142 | 160 | 163 |
| Wet days | 23 | 20 | 20 | 17 | 16 | 18 | 22 | 22 | 20 | 22 | 24 | 23 |
| Sun h/day | 0.6 | 2.0 | 3.8 | 6.3 | 7.4 | 6.7 | 6.0 | 5.7 | 4.2 | 2.7 | 1.0 | 0.3 |
| Wind (km/h) | 36 | 34 | 31 | 26 | 25 | 23 | 23 | 25 | 28 | 31 | 33 | 35 |
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 | ±0.0 | +0.2 | +0.1 | +0.3 | +0.4 | −0.2 | −0.8 | ±0.0 | +0.1 | ±0.0 | −0.1 | +0.1 |
| 2021 | −0.1 | ±0.0 | +0.4 | +0.3 | ±0.0 | −0.1 | +1.2 | +0.7 | +1.1 | +0.4 | +0.4 | +0.3 |
| 2022 | +0.4 | +0.4 | +0.7 | +0.7 | +1.0 | +0.3 | ±0.0 | +0.4 | +1.1 | +0.6 | +0.9 | +0.6 |
| 2023 | +0.4 | +0.6 | +0.6 | +0.7 | +1.5 | +2.8 | +1.4 | +0.9 | +1.2 | +1.0 | +0.9 | +0.5 |
| 2024 | +0.3 | +0.8 | +0.7 | +0.7 | +1.6 | −0.1 | −0.4 | −0.6 | +0.1 | ±0.0 | +0.3 | +0.3 |
| 2025 | +0.7 | +0.6 | +0.9 | +1.2 | +2.3 | +0.7 | +0.9 | +1.1 | +0.3 | +0.4 | +0.6 | +0.3 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
Tory Island
Ireland3.6 km²62 m36 km away
IrelandIreland84,421 km²1,039 m186 km away
Achill IslandIreland148 km²688 m150 km away
Islay
United Kingdom615 km²491 m173 km away
Rathlin IslandUnited Kingdom14 km²136 m152 km away
IonaUnited Kingdom8.5 km²97 m200 km away
TireeUnited Kingdom79 km²141 m198 km away
ColonsayUnited Kingdom41 km²135 m189 km awayAbout these numbers
| Names, area, population | Wikidata (Q2271120) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| 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 |
| Beaches, mountains, lakes and waterfalls | Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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