Mountains & Peaks | BY Rami Rasamny | PUBLISH DATE: October 29 2025 | READ TIME: 2 mins | UPDATED DATE: August 19 2026

What is the Weather Like on Aconcagua?

Sunrise on the way to the summit of Aconcagua from Plaza Independencia, capturing high altitude light over the Andes during a climb of Mt Aconcagua.

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In this extract from our full Talking Outdoors episode, Rami Rasamny, founder of Life Happens Outdoors and veteran of multiple Aconcagua expeditions, explains what to expect when it comes to weather on Aconcagua, the highest mountain in South America. From temperature swings to high winds and changing conditions at altitude, understanding Aconcagua’s climate is key […]

In this extract from our full Talking Outdoors episode, Rami Rasamny, founder of Life Happens Outdoors and veteran of multiple Aconcagua expeditions, explains what to expect when it comes to weather on Aconcagua, the highest mountain in South America. From temperature swings to high winds and changing conditions at altitude, understanding Aconcagua’s climate is key to preparing for a smooth expedition.

In this video, we cover:

Typical weather conditions on Aconcagua

How weather shifts across different camps

What kind of wind and cold to expect at altitude

Seasonal weather trends and best time to climb

Essential gear for mountain weather

When wind changes the decision

Strong wind can become a visibility and decision-making hazard when it drives snow across the route. If conditions deteriorate, the team should stop, follow guide instructions and let the forecast and on-mountain assessment determine whether to wait, descend or end the summit attempt. The weather article explains the risk; the guide team owns the real-time decision.

Whether you’re preparing to climb Aconcagua or exploring what it’s like to be there, this guide gives you a clear picture of what to expect from the elements.

Weather and season answer different questions. Use When Is the Best Time to Climb Aconcagua? to choose the broader climbing window, then use the live expedition page for current departure dates.

For the wider preparation picture, use the complete Aconcagua planning guide, then see the supported expedition for current dates and inclusions.

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ABOUT THE AUTHOR

Rami Rasamny headshot

Rami Rasamny

Rami Rasamny is the founder of Life Happens Outdoors, a premium adventure travel company that uses the outdoors as a catalyst for human transformation. His work brings people into the mountains not only for challenge, but for clarity, confidence, and connection. He believes that when people answer the call to adventure truthfully, they come back different.