Aconcagua Climate and Average Weather
Climate of Aconcagua: average temperatures, rainfall and seasons month by month.
Climate in Aconcagua month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 14° | -1° | 1,3 in | ★★☆☆☆ |
| February | 16° | 1° | 0,5 in | ★★★☆☆ |
| March | 11° | -3° | 0,4 in | ★★☆☆☆ |
| April | 1° | -11° | 0,7 in | ★★☆☆☆ |
| May | -8° | -21° | 3,7 in | ★★☆☆☆ |
| June | -13° | -26° | 6,7 in | ★☆☆☆☆ |
| July | -10° | -22° | 7,0 in | ★☆☆☆☆ |
| August | -12° | -25° | 5,5 in | ★☆☆☆☆ |
| September | -9° | -22° | 4,2 in | ★★☆☆☆ |
| October | -5° | -16° | 1,1 in | ★★☆☆☆ |
| November | -2° | -13° | 1,0 in | ★★☆☆☆ |
| December | 5° | -8° | 0,9 in | ★★☆☆☆ |
Climate type: Polar. Source: Open-Meteo archive (ERA5).
Recent extremes in Aconcagua
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Aconcagua compares with nearby places
Annual averages, and the difference against Aconcagua.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Santiago | 67 mi | 61°F | +101°F warmer | 16 in |
| Chile | 67 mi | 61°F | +101°F warmer | 16 in |
| Santiago International Airport | 68 mi | 60°F | +100°F warmer | 21 in |
Best time to visit Aconcagua
Go in February, March and December. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: June, July and August - expect the least comfortable mix of heat, cold or rain.
What this means for Aconcagua
Today is warmer than average for August. The forecast high of -5°F is 7.4°F above the -12°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
Gusts to 41 mph will push high-sided vehicles on exposed roads and bridges. Overnight lows near -15°F mean ice is possible on bridges before dawn.
At 22.838 ft, air here runs roughly 113°F cooler than the same latitude at sea level.
Southern Hemisphere, so peak summer falls in December to February.
The gap between the warmest and coldest month averages 60°F.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots with grip for ice
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- Avoid high-elevation trails without traction devices - frozen surfaces persist in shade all day.
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 41 mph.
- If your dates are flexible, avoid June, July and August - historically the least comfortable months here.
Summary
Aconcagua is a mountain in Argentina. Aconcagua is a mountain known as the highest peak in the Americas. It sits at 22.838 ft above sea level.
Right now it is -15°F (-26°C) in Aconcagua with partly cloudy. It feels like -24°F. Today runs from -15°F to -5°F. Chance of precipitation is 0%. Sightseeing conditions score 7.3/10 - good conditions.
The best time to visit Aconcagua is February, March and December. The climate is polar. June, July and August tend to be the least comfortable months. February is the warmest month with average highs near 16°F, while June is the coldest with lows near -26°F.
The closest major airport is Santiago International Airport (SCL), about 68 mi away.
In plain terms. Today is warmer than average for August. The forecast high of -5°F is 7.4°F above the -12°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. driving is the strongest bet in Aconcagua today at 9.8/10. Gusts to 41 mph will push high-sided vehicles on exposed roads and bridges. Overnight lows near -15°F mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Aconcagua
| Type | Mountain |
|---|---|
| Country | Argentina |
| Continent | South America |
| Coordinates | 32°39′11.5″S 70°0′39.2″W (-32.6532, -70.0109) |
| Elevation | 22.838 ft |
| Known for | the highest peak in the Americas |
| Local time | 1:13 PM (UTC-03:00) |
| Best months | February, March and December |
| Climate | Polar |
Weather map for Aconcagua
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Aconcagua
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Aconcagua?
Aconcagua is a mountain in Argentina. Its coordinates are -32.6532, -70.0109. It lies in South America.
What is the weather like in Aconcagua right now?
It is currently -15°F (-26°C) with partly cloudy. Humidity is 50% and wind is 3 mph.
When is the best time to visit Aconcagua?
February, March and December offer the most comfortable conditions in Aconcagua, which has a polar climate. June, July and August are usually the hardest months for outdoor plans.
What time zone is Aconcagua in?
Aconcagua observes America/Argentina/Mendoza (UTC-03:00). The local time is 1:13 PM.
What is the nearest airport to Aconcagua?
The closest airports are Santiago International Airport (SCL), 68 mi away.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (mountains) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 1:13 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
