Main image

Chmee2 / Valtameri CC BY-SA 4.0 Wikimedia Commons

Laki

Volcano

Laki is a volcanic fissure system in southern Iceland, known for the massive 1783-84 eruption; visitors come to study broad lava fields, craters and stark volcanic terrain.

Laki SelfossÞingvellirGeysirGullfossSeljalandsfossSkógafossReynisfjaraLandmannalaugarLaki

Laki essentials

Country: Iceland
Driest months: Apr-Jun
Pay in: Krona (kr)
Language: Icelandic

Laki at a Glance

About Laki

Laki is a volcanic fissure system in southern Iceland famous for the catastrophic 1783-1784 eruption that produced extensive lava flows and large gas emissions. The eruption is one of the largest basaltic fissure events in recorded history and had far-reaching environmental effects.

The fissure eruption created a long row of craters and vast lava fields known as Lakagígar, which are a distinctive highland landscape and a subject of geological study. The event had severe local impacts in Iceland and measurable climatic and atmospheric effects across Europe and beyond.

The Laki fissure is part of Iceland’s volcanic systems and lies in a remote highland area where access is by highland roads and tracked routes; conditions can be rough and weather-dependent.

It is located in southern Iceland within the broader volcanic zone associated with the Mid-Atlantic Ridge and nearby ice caps.

  • 1783-84 Eruption: The Laki fissure produced a major basaltic eruption in 1783-1784 that released large volumes of lava and gases and had significant climatic and environmental impacts across Europe.
  • Lakagígar Craters: The eruption created extensive lava fields and a line of craters known as Lakagígar, which remain a visible landscape feature in the highlands of southern Iceland.
When to Go

Best Time to Visit Laki

Summer is the sensible season for visiting Laki's fissure system; roads and weather are most cooperative then.

Summer (June-August)
June-August · 5-15°C
Best access conditions and longest daylight for exploring the fissure systems.
Shoulder seasons (May, Sept)
May, September · 0-10°C
Fewer visitors but weather can be unpredictable and roads more difficult.

Weather & Climate near Laki

Climate

Laki's climate is classified as Tundra - Tundra climate with cold summers (peaking in July) and freezing winters (coldest in March). Temperatures range from -6°C to 12°C. Abundant rainfall (1584 mm/year), wettest in October, distributed fairly evenly throughout the year.

Air Quality: AQI 16 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
18°
Warmest Month
-21°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -6° - -1° -11° 143 mm overcast 93% 7.9 m/s 0.0 low 5.0h
February Poor -6° - -2° -11° 142 mm overcast 93% 7.8 m/s 0.0 low 8.2h
March Poor -6° - -2° -12° 133 mm overcast 92% 7.8 m/s 0.2 low 11.5h
April Poor -5° - 1° -9° 102 mm overcast 90% 7.2 m/s 0.7 moderate 14.9h
May Poor 0° - 5° -3° 108 mm overcast 86% 6.5 m/s 1.1 high 18.2h
June Poor 3° - 9° 2° 112 mm overcast 87% 5.9 m/s 1.2 high 20.4h
July Poor 5° - 12° 5° 113 mm overcast 88% 5.7 m/s 1.0 high 19.3h
August Poor 5° - 11° 4° 150 mm overcast 89% 5.7 m/s 0.7 moderate 16.1h
September Poor 2° - 6° -1° 138 mm overcast 92% 6.4 m/s 0.3 low 12.8h
October Poor -2° - 2° -5° 160 mm overcast 92% 6.5 m/s 0.1 low 9.5h
November Poor -5° - 0° -9° 136 mm overcast 93% 6.7 m/s 0.0 low 6.0h
December Poor -6° - -1° -10° 147 mm overcast 93% 7.2 m/s 0.0 low 3.6h
Getting There & Around

How to Get to Laki

Laki lies in the southern Highlands of Iceland and is accessible via F-roads from Route 1; travel typically requires a 4x4 vehicle and favorable weather. Many visitors join guided tours from the southern coast (Vík and Kirkjubæjarklaustur) that include transport and local expertise.

Tips for Visiting Laki

  • Laki's fissures are remote - use a 4x4 and local guides for safer access.
  • Respect private land and grazing areas when approaching by road.
  • The landscape is stark and exposed; plan fuel and supplies carefully as services are sparse.