Volcano · Southern Region

Bláhnjúkur

940 m3,084 ft

Prominence: 150 m491 ft
Isolation: 1.7 km
Tonight: -8°CFog · Wind 11 km/h E

Bláhnjúkur is a 940 m (3,084 ft) volcano in Southern Region, Iceland.

All facts

Elevation: 940 m · 3,084 ft
Nearest higher peak: Hrafntinnusker (1,128 m)
Region: Southern Region, Iceland
Spanish name: Bláhnúkur
Coordinates: 63.9768° N, 19.0692° W

Open the 3D view

3D map

Bláhnjúkur 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 6 × 6 km

Surface

Vertical scale

Topographic map

Bláhnjúkur terrain and contours

20 m contours from the Copernicus GLO-30 terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.

Index contours every 100 mShowing west → east through the summit

Bláhnjúkur elevation profile

West → east through the summit

Hover the profile to read elevation and distance.Tap or drag along the profile to read elevation and distance.

Weather

Bláhnjúkur weather

Tonight · Fog · -8°C (18°F) · 0.1 mm · Wind 11 km/h E

Bláhnjúkur forecast for the summit, about 940 m.

Tonight-8°0.1 mm11 km/h E
Sat-9°-4°0.2 mm24 km/h NW
Sun-10°-6°–26 km/h NW
Mon-8°-6°0.5 mm17 km/h W
Tue-5°-3°0.8 mm21 km/h W
Wed-5°-2°28.2 mm39 km/h SE
Thu-1°3°42.8 mm64 km/h SE
Fri-2°-2°38.7 mm32 km/h E
Sat-7°-1°3.6 mm22 km/h S
Sun-8°-6°–7 km/h S

Forecast data: MET Norway, CC BY 4.0; daily low and high, precipitation total and strongest wind from the hourly data, model run Oct 23, 23:19 UTC.

Slope

Share of the 6 × 6 km view by steepness, from the 30 m model.

Mixed terrain: gentle slopes, steep faces and everything between.

Gentle, 0–15°

47.2%

Moderate, 15–30°

39.8%

Steep, 30–45°

12.8%

Cliffs, 45° and over

0.1%

Steeper than 30°: 12.9% of the 36 km² view
Relief in view: 440 m low point 575 m

Land cover

ESA WorldCover 10 m classification of the same area.

Bare rock / sparse 60.7%Moss & lichen 31.2%Grassland 5.0%Snow & ice 3.0%

Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.

Nearby summits

Named peaks within 3 km, measured from the Bláhnjúkur summit.

Summit list 4

1Brennisteinsalda881 m 1.4 km WNW
2Reykjakollur741 m 1.5 km ENE
3Norðurbarmur757 m 2.0 km NE
4Skalli1,027 m 2.9 km SSE

Wildlife

Wildlife seen nearby

Sightings of the most-seen species on iNaturalist (research grade) within 3 km; 90 species recorded in all.

Sightings per species 6

Sea Thrift62
Moss Campion62
Red-necked Phalarope36
Alpine Catchfly35
Velvetbells34
Common Butterwort26

Where it sits

Where Bláhnjúkur sits

Ranked in 1

#5 Volcanoes in Iceland

Nearby

Nearby places

More 1

KatlaPeak · 1,450 m39 km S

Downloads

Bláhnjúkur downloads: topographic map, heightmap, STL 3D model and DEM

Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.

Print & wall

JPGBláhnjúkur satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2025-08-20.

3D printing & 3D apps

GIS & GPS

</>Embed this mapPaste this into your site to show the interactive 3D terrain, with a credit link back here.

<iframe src="https://topolu.com/embed/blahnjukur" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Bláhnjúkur"></iframe>
<p><a href="https://topolu.com/blahnjukur" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Accuracy

How accurate is this?

within 10 m This 3D map reads 930 m at the summit; the official height is 940 m.

A 30 m terrain model averages each cell, so a few metres either way is normal.

Source	Summit	Difference
Official height (Wikidata)	940 m	—
Copernicus GLO-30 (used on this page)	930 m	-10 m
Copernicus GLO-90	912 m	-28 m

Data sources

Terrain: Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
Imagery: Contains modified Copernicus Sentinel data 2025 (scene 2025-08-20)
Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts: Wikidata (CC0)
Wildlife: iNaturalist community observations, counts only
Accuracy comparison, Panorama: Includes Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
Forecast: Weather forecast from MET Norway (CC BY 4.0)
Sources: Wikidata · OpenStreetMap · GeoNames · Wikipedia