Hudson Volcano
Mountain Remote Antarctic Chilean volcano with glacial cover
A glaciated stratovolcano in southern Chile, Hudson has produced major explosive eruptions and widespread ash deposits. Scientists and experienced mountaineers visit for glaciated slopes and remote Andean terrain.
Hudson Volcano is a remote, glaciated stratovolcano in the southern Chilean Andes, located in the Aysén Region. It is known for powerful explosive eruptions and extensive glacial cover.
The site is primarily of interest to volcanologists, glaciologists and remote-area trekkers; there are no developed visitor facilities and access is challenging because of glaciers, rough terrain and weather. The volcano’s summit area and caldera show deposits and landscape scars from past explosive activity.
Hudson has produced several strong eruptions in the 20th century, culminating in a significant explosive event in 1991 that had widespread ashfall and regional impacts. Geological studies emphasise its explosive behavior and interactions with ice.
Located in a sparsely populated segment of the southern Andes in Chile’s Aysén Region, the volcano sits well inland from the Pacific coast amid glaciated mountains. The area is remote with limited road access and is typically visited only by specialised expeditions.
- 1991 eruption: The volcano produced a major explosive eruption in 1991 that dispersed ash widely over southern Chile and Argentina and was one of the largest recent eruptions in southern South America.
Tips for Visiting Hudson Volcano #
- Hudson Volcano is remote Patagonian terrain-check the current volcanic alert level with Chile's SERNAGEOMIN and only plan visits with guides experienced in glacial/volcanic environments.
- Attempt visits in the austral summer (December-March) when access windows and weather are most reliable, and build in extra days for weather‑related delays.
- Because many approaches are lengthy or by sea, base logistics on nearby regional towns (e.g., Coyhaique or coastal ports) and expect multi‑day travel; coordinate transport and emergency plans with your guide.
Best Time to Visit Hudson Volcano #
Best visited in the austral summer (December-February) when access by sea and weather conditions are most favorable.
Weather & Climate near Hudson Volcano #
Hudson Volcano's climate is classified as Tundra - Tundra climate with cold summers (peaking in January) and freezing winters (coldest in July). Temperatures range from -7°C to 10°C. Abundant rainfall (1361 mm/year), wettest in June.
January
January is cold with highs of 10°C and lows of 2°C. Regular rainfall (85 mm) and breezy conditions.
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February
February is cold with highs of 10°C and lows of 1°C. Regular rainfall (91 mm) and breezy conditions.
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March
March is cold with highs of 9°C and lows of 0°C. Significant rainfall (118 mm) and breezy conditions.
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April
April is cold with highs of 6°C and lows of -3°C. Significant rainfall (136 mm) and breezy conditions.
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May
May is freezing with highs of 2°C and lows of -5°C. Significant rainfall (139 mm) and breezy conditions.
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June
June is freezing with highs of -1°C and lows of -7°C. The wettest month with heavy rain (147 mm) and breezy conditions.
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July
July is the coldest month with highs of -1°C and lows of -7°C. Significant rainfall (146 mm) and breezy conditions.
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August
August is freezing with highs of 0°C and lows of -6°C. Significant rainfall (128 mm) and breezy conditions.
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September
September is freezing with highs of 2°C and lows of -5°C. Regular rainfall (97 mm) and breezy conditions.
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October
October is cold with highs of 5°C and lows of -3°C. Regular rainfall (82 mm) and breezy conditions.
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November
November is cold with highs of 7°C and lows of -1°C. Regular rainfall (95 mm) and breezy conditions.
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December
December is cold with highs of 9°C and lows of 1°C. Regular rainfall (97 mm) and breezy conditions.
