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Iceland Iceland Canyon World Heritage

Jökulsárgljúfur

163 m of rock, cut by the Jökulsá á Fjöllum.

See the cutWhen to go

Andreas Tille · CC BY-SA 4.0

The cut

163 metres, to scale.

A slice through Jökulsárgljúfur where it is deepest and narrowest, measured on the Copernicus relief model every 30 m. Same scale as the landmark standing on the floor.

250 m237 m163 m5.8 km rim to rim1.0 kmvertical scale × 3.0250 m237 m163 m5.8 km rim to rim1.0 kmvertical scale × 3.0

Standing on the floor, to scale: Great Pyramid · 139 m

Depth is measured to the lower rim; the width is from rim to rim. A 30 m relief model smooths the narrowest walls, so a slot canyon reads shallower than it is.

163m

Depth

published figure: 120 m

5.8km

Rim to rim

measured on the 30 m relief model

20°

Steepest wall

average over 300 m, from the relief

24km

Length

Rim to floor

Afternoons, up top and down below.

In July the afternoon reaches 13 °C. The best months to hike are from July to August. The rim freezes at night from November to April.

rim · 250 mfloor · 74 m
  1. 0°-1°Jan
  2. 0°-1°Feb
  3. 0°-1°Mar
  4. 2°1°Apr
  5. 5°4°May
  6. 11°10°Jun
  7. 13°12°Jul
  8. 12°11°Aug
  9. 9°8°Sep
  10. 4°3°Oct
  11. 1°0°Nov
  12. 0°-1°Dec
Hike: Jul–AugFrost on the rim: Nov–Apr

Afternoon highs, 1991–2020 averages (NASA POWER) brought to the altitude of the rim and of the floor with the standard lapse rate (6.5 °C per 1 000 m). Shade, wind and rock change this on the day. Not a forecast.

Canyon in Iceland

Jökulsárgljúfur is a canyon in Iceland, cut by the Jökulsá á Fjöllum river. The relief model measures 163 m from the floor to the lower rim. The published depth is 120 m. It runs for 24 km. Rim to rim it is 5.8 km wide where the cut was taken. It lies within Vatnajökull National Park. It is a UNESCO World Heritage site.

Getting there.

Plan the visit

Guided hikes, 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.

The river

The Jökulsá á Fjöllum runs highest from May to July.

The Jökulsá á Fjöllum carries about 199 m³/s on average here. It runs highest from May to July, fed by melting snow.

  1. 99 m³/sJan
  2. 31 m³/sFeb
  3. 41 m³/sMar
  4. 196 m³/sApr
  5. 510 m³/sMay
  6. 565 m³/sJun
  7. 425 m³/sJul
  8. 215 m³/sAug
  9. 194 m³/sSep
  10. 245 m³/sOct
  11. 257 m³/sNov
  12. 196 m³/sDec

From about 31 m³/s in the lowest month to 565 m³/s in the highest. Its basin above this point covers 7,118 km².

Follow the Jökulsá á Fjöllum from source to mouth on Riveryas

Estimate: long-term flow from the HydroATLAS model (WaterGAP, 1971–2000) shaped by the monthly rain, snow and temperature of the area (NASA POWER). Dams change it. Not a forecast.

From the sky.

The canyon from above, with the relief shaded, the line of the cut, the river and what people have mapped around it.

Jökulsárgljúfur seen from above (Sentinel-2) N 3 km

Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 13 × 13 km, north up. The line is the cut above. Points © OpenStreetMap contributors.

Around the canyon.

  • 15viewpoints within 5 kmKirkjan and 14 more
  • 3marked hiking routes within 4 kmHolmatungur, Hljóðaklettar - Rauðhólar
  • 3footbridges and suspension bridges within 3 km
  • 1named waterfalls within 4 kmHólmárfossar
  • 4caves within 3 km
  • 6car parks within 3 km
  • 2information boards and visitor centres within 4 km
  • 1campsites within 8 kmÁsbyrgi í Vesturdal
  • via ferrata routes within 4 km
  • climbing crags within 3 km
  • rafting, canoe, kayak or canyoning spots within 4 km
  • swimming spots within 3 km
  • bus stops within 2 km
  • hotels and guesthouses within 8 km
  • restaurants and cafés within 4 km

Counted in OpenStreetMap, the map anyone can edit, around the floor of the canyon. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).

In our other atlases

What else is around Jökulsárgljúfur.

The river that carved it, the waterfalls inside it, the mountains on the rim, the lakes, beaches and island nearby — from our six sister atlases, each with its own figures.

Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.

Month by month

The weather, at the floor and at the rim.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon · floor000251113129410
Afternoon · rim-1-1-114101211830-1
Night · rim-6-6-6-404663-1-4-6
Rain (mm)105859983866993100127131127122
Rainy days201720171615181818212020
Sun hours/day0.00.42.24.66.07.85.64.63.01.00.00.0
Snow on the ground (cm)72869681344005153051
Afternoon · floorAfternoon · rimNight · rimRain (mm)Sun hours/day
Jan0-1-61050.0
Feb0-1-6850.4
Mar0-1-6992.2
Apr21-4834.6
May540866.0
Jun11104697.8
Jul13126935.6
Aug121161004.6
Sep9831273.0
Oct43-11311.0
Nov10-41270.0
Dec0-1-61220.0

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (74 m) and the rim (250 m) with the standard lapse rate. Not a forecast.

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.

JanFebMarAprMayJunJulAugSepOctNovDec
2020122%155%106%84%54%68%149%52%147%111%111%166%
2021142%89%119%64%50%121%56%38%124%185%96%43%
202266%127%59%86%141%197%166%184%63%186%105%60%
2023116%94%89%55%88%84%129%40%121%117%46%57%
202454%97%132%91%45%234%85%204%91%85%61%48%
2025105%71%77%108%69%297%71%73%90%50%46%57%

130% or more: wet month 70% or less: dry month

Compare with the neighbours.

Jökulsárgljúfur

Iceland

  • 163 mDepth
  • 5.8 kmRim to rim
  • 24 kmLength
  • 20°Steepest wall

Ásbyrgi

Iceland · 9 km

  • 121 mDepth
  • 24 kmRim to rim
  • —Length
  • 16°Steepest wall

See the guide

Stuðlagil

Iceland · 104 km

  • 332 mDepth
  • 6.4 kmRim to rim
  • 0.5 kmLength
  • 16°Steepest wall

See the guide

Drekagil

Iceland · 104 km

  • 241 mDepth
  • 10 kmRim to rim
  • —Length
  • 18°Steepest wall

See the guide

Where these figures come from

Name, type, published depth and lengthWikidata (Q38888125) · CC0
The cut: depth, width, wall and 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
River flow and basinHydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0
ClimateNASA POWER, 1991–2020
Viewpoints, trails, bridges and the river line© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Rivers, waterfalls, mountains, lakes, beaches and islands nearbyCoastya, 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 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.Visit 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.You are here