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Mýrdalsjökull
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Mýrdalsjökull is the fourth largest glacier in Iceland, covering an area of approximately 595 square kilometers in the southernmost part of the island. It is primarily renowned for concealing one of the country's most dangerous and active volcanoes, Katla, beneath its ice cap. Since Katla erupts on average every 40 to 80 years, and its last major eruption occurred in 1918, the area is under constant scientific monitoring. An eruption would trigger massive glacial outburst floods (jökulhlaups) that could inundate the coastal plains. The glacier's peak reaches an elevation of about 1,493 meters above sea level. This region receives some of the highest precipitation levels in Iceland, which aids the continuous replenishment of the ice mass, even as the peripheral glacier tongues are retreating. The surrounding landscape is characterized by deep black volcanic sands and contrasting lush green mountains. Mýrdalsjökull is a crucial research site for predicting volcanic activity and its impact on the vital Ring Road infrastructure.
- Location: Iceland
- Nearby: Þórsmörk (19 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 1 | 1 | 1 | 3 | 5 | 8 | 10 | 10 | 8 | 4 | 2 | 1 |
| Rain mm | 250 | 232 | 222 | 174 | 124 | 120 | 144 | 166 | 229 | 235 | 221 | 251 |
📋 Practical info
Getting there
Access to this mountainous region typically involves driving along gravel roads followed by a strenuous hike. It is highly recommended to start your journey from the nearest established base camp early in the morning.
Best season
The most favorable season for a visit is during the brief summer window from late June to August, when trails are mostly free of snow. Winter access is extremely hazardous and strictly reserved for well-equipped experts.
Terrain & paths
Expect a demanding terrain characterized by loose volcanic rocks, steep ascents, and potentially unstable ridges. A very good level of physical fitness and surefootedness is absolutely essential for navigating this environment safely.
What to bring
Proper high-ankle hiking boots, windproof and waterproof outer layers, and thermal undergarments are non-negotiable. Always carry a physical map, compass, GPS device, and sufficient emergency food and water supplies.
Parking
Parking is usually limited to designated staging areas at the end of the drivable road, often far from the main summit. Ensure your vehicle is parked safely without blocking narrow access routes used by emergency services.
Safety
Sudden weather changes are a primary danger, capable of causing whiteouts and plunging temperatures within minutes. Always check the local weather forecasts meticulously and never hesitate to turn back if conditions deteriorate.
Time needed
A comprehensive expedition in this mountainous terrain can easily consume eight to twelve hours depending on your chosen route. Always allocate ample buffer time for rest stops, navigation checks, and unexpected delays along the way.
Geography
Facts
- Covers 595 km², making it the fourth largest glacier in Iceland.
- Sits directly atop the highly active Katla volcano.
- The last major eruption of Katla was recorded in 1918.
- Reaches a maximum peak height of 1,493 meters.
- One of the wettest locations in Iceland due to orographic lift.
- Poses a high risk of jökulhlaups during volcanic unrest.
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Sights nearby
Frequently asked questions
Where is Mýrdalsjökull located?
In the south of Iceland, directly above the village of Vík í Mýrdal.
What volcano is hidden beneath it?
The dangerous and highly active Katla volcano lies beneath the ice cap.
Can you go glacier hiking there?
Yes, especially the outlet glaciers like Sólheimajökull are popular spots for hiking.
Why is the ice sometimes black?
This is due to volcanic ash from past eruptions that has been trapped in the ice.
How dangerous is Katla?
It is considered one of the most dangerous, as an eruption would trigger massive floods.
Mýrdalsjökull: where is it located?
Mýrdalsjökull is located in Iceland.
Mýrdalsjökull: when is the best time to visit?
The most pleasant time to visit is Jun, Aug.
Mýrdalsjökull: why is it worth visiting?
Mýrdalsjökull is the fourth largest glacier in Iceland, covering an area of approximately 595 square kilometers in the southernmost part of the island.
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