United Kingdom Show cave
Marble Arch Caves
9 °C inside, all year.
Neil Rickards · CC BY 2.0
The descent
The entrance, at 167 m.
The real relief above Marble Arch Caves, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.
The depth is the one published by those who explored it; the shape of the galleries is a sketch, not a survey. No depth has been published for this cave yet.
167m
Entrance altitude
from the 30 m relief model
9°C
Inside, all year
the yearly average outside, at the entrance
97m
Rock above
the highest point within 1.5 km
Inside and outside
9 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 9 °C here, in January and in August. In July the afternoon reaches 17 °C at the entrance, 8 °C warmer than inside: take a jacket.
- 6°2°Jan
- 6°2°Feb
- 8°3°Mar
- 10°4°Apr
- 13°7°May
- 16°10°Jun
- 17°11°Jul
- 17°11°Aug
- 15°10°Sep
- 12°7°Oct
- 9°5°Nov
- 7°3°Dec
Outside: afternoon and night averages for 1991–2020 (NASA POWER) brought to the altitude of the entrance. Inside: the yearly average, which deep parts of a cave keep. Near the entrance it follows the weather a little.
Cave
Marble Arch Caves is a show cave in United Kingdom. The entrance is at 167 m. It has an underground river and stalactites and stalagmites. It is open to visitors.
Getting there.
- Show cave: open to visitorsUsually with a guided tour; check times and tickets on the official site.Official site↗
- Enniskillennearest town · 15 km in a straight line
- Parking 50 m awaynearest car park in OpenStreetMap, straight line
- Cuilcagh Mountain Viewpointnearest viewpoint · 0.2 km from the entrance
- Ireland West Airport Knock (NOC)nearest airport with scheduled flights · 76 km in a straight lineCar hire at NOC airport (Charlestown)Discover Cars · sponsored link↗
Plan the visit
Guided tours, a bed nearby, a car.
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.
From above.
The ground above the cave, with the relief shaded, the line of the section and what people have mapped around the entrance.
N
1.5 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 6.0 × 6.0 km, north up. The line is the section above. Points © OpenStreetMap contributors.
Around the entrance.
- 8other cave entrances within 3 kmMastodon, Pollasillagh, John Thomas and 5 more
- 3springs within 2 kmSt. Lassers Well
- 24sinkholes within 3 kmPollasumera, Cat's Hole, Cradle Hole and 21 more
- 4viewpoints within 3 kmMarlbank Viewpoint, Gortmaconnell Viewpoint, Owenbrean Viewpoint and 1 more
- 6marked hiking routes within 3 kmUlster Way, Cuilcagh Way, Cladagh Glen and 3 more
- 1named waterfalls within 4 kmCascades Waterfall
- 9car parks within 2 km
- 7information boards and visitor centres within 3 km
- 1campsites within 8 kmRushin House Caravan Park
- 5hotels and guesthouses within 8 kmCustoms House Inn, Butler's Apartments, Arch House B&B and 2 more
- caving clubs and spots within 15 km
- climbing crags within 3 km
- bus stops within 2 km
- restaurants and cafés within 3 km
Counted in OpenStreetMap, the map anyone can edit, around the entrance. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- Enniskillen15 km in a straight line
- Ballinamallard22 km in a straight line
- Ballyconnell22 km in a straight line
- Lisnaskea24 km in a straight line
- Manorhamilton24 km in a straight line
In our other atlases
What else is around Marble Arch Caves.
The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.
Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.
Month by month
The weather outside, at the entrance.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon | 6 | 6 | 8 | 10 | 13 | 16 | 17 | 17 | 15 | 12 | 9 | 7 |
| Afternoon | 6 | 6 | 8 | 10 | 13 | 16 | 17 | 17 | 15 | 12 | 9 | 7 |
| Night | 2 | 2 | 3 | 4 | 7 | 10 | 11 | 11 | 10 | 7 | 5 | 3 |
| Rain (mm) | 134 | 105 | 97 | 76 | 98 | 105 | 118 | 126 | 106 | 128 | 136 | 139 |
| Rainy days | 22 | 18 | 19 | 17 | 17 | 19 | 22 | 22 | 19 | 21 | 22 | 21 |
| Sun hours/day | 0.9 | 2.3 | 3.8 | 6.0 | 7.0 | 6.2 | 5.1 | 4.8 | 3.9 | 2.6 | 1.1 | 0.6 |
| Snow on the ground (cm) | 4 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 6 | 6 | 2 | 134 | 0.9 |
| Feb | 6 | 6 | 2 | 105 | 2.3 |
| Mar | 8 | 8 | 3 | 97 | 3.8 |
| Apr | 10 | 10 | 4 | 76 | 6.0 |
| May | 13 | 13 | 7 | 98 | 7.0 |
| Jun | 16 | 16 | 10 | 105 | 6.2 |
| Jul | 17 | 17 | 11 | 118 | 5.1 |
| Aug | 17 | 17 | 11 | 126 | 4.8 |
| Sep | 15 | 15 | 10 | 106 | 3.9 |
| Oct | 12 | 12 | 7 | 128 | 2.6 |
| Nov | 9 | 9 | 5 | 136 | 1.1 |
| Dec | 7 | 7 | 3 | 139 | 0.6 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (167 m) with the standard lapse rate. Not a forecast.
Photographs
Inside and around.
Recent years
Wet years, dry years.
Rain of each month as a share of the 1991–2020 average. A dry year means a lower river and hotter rock; a wet one, more water in the gorge.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 86% | 222% | 98% | 35% | 53% | 172% | 130% | 127% | 92% | 150% | 139% | 103% |
| 2021 | 108% | 103% | 117% | 52% | 118% | 60% | 74% | 90% | 91% | 121% | 63% | 100% |
| 2022 | 56% | 152% | 67% | 98% | 98% | 108% | 60% | 43% | 110% | 149% | 99% | 90% |
| 2023 | 88% | 55% | 158% | 127% | 51% | 92% | 179% | 101% | 121% | 104% | 94% | 137% |
| 2024 | 82% | 102% | 123% | 130% | 73% | 62% | 83% | 122% | 49% | 72% | 61% | 91% |
| 2025 | 70% | 92% | 49% | 135% | 60% | 135% | 78% | 75% | 140% | 104% | 109% | 78% |
130% or more: wet month 70% or less: dry month
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q739118) · CC0 |
|---|---|
| The relief above, the entrance altitude, the section and the 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Climate | NASA POWER, 1991–2020 |
| Entrances, springs, sinkholes, opening hours and what is around | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Rivers, waterfalls, lakes, mountains, canyons, beaches and islands nearby | Coastya, Lakeyas, Peakyas, Cascadyas, Islandyas, Riveryas |
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, canyons, caves, dark skies, viewpoints, birdwatching or forests?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.






