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El Chaltén Weather in October
October in El Chaltén brings low temperatures, with daytime highs of 5°C (41°F) and nights around -2°C (28°F). It's part of the rainy season, with 191 mm (7.5 in) of snow/rainfall on average, so an umbrella or poncho is a good idea.
Rainfall in El Chaltén in October
As part of the rainy season, El Chaltén sees around 5 days of rain in October, with an average of 191 mm (7.5 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.
Temperature in El Chaltén in October
Daytime highs in El Chaltén in October reach 5°C (41°F), with nights around -2°C (28°F). Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows of -2°C (28°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.
Sunshine in El Chaltén in October
Expect a lot of sunshine this month, with about 210 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.For additional travel inspiration, our weather planner can help you discover destinations worldwide.
El Chaltén Temperature in October
Min Temperature
-2°C (28°F)
Max Temperature
5°C (41°F)
Chance of Rain
16%
Precipitation
191 mm (7.5 in)
Rainy days
5 days
Sunshine
210 hours
Percentage Sunshine
El Chaltén Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in El Chaltén - and find the best time to visit.
Historical weather records for El Chaltén in October
Browse day-by-day weather records for El Chaltén spanning 21 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
El Chaltén historical weather extremes in October
According to our 19 years of weather records for El Chaltén, the following extremes were recorded between 2006 and 2025.
- The hottest October day on record in El Chaltén reached 10°C (50°F) (October 24, 2016).
- The coldest October day was on October 1, 2020, with a maximum of -5°C (23°F).
- Nighttime temperatures dropped to -16°C (3°F) on October 2, 2020, marking the coldest October night on record.
- The wettest day in October El Chaltén was on October 19, 2010 with 73 mm (2.9 in) of precipitation.
Best Places in Argentina in October
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in October →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in El Chaltén in October
Cold weather calls for smart layering in October. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in El Chaltén in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling3/10 -
Walking3/10 -
Camping1/10 -
Outdoor sports3/10
El Chaltén 3-Day Forecast
More climate data for El Chaltén
See the full El Chaltén climate overview or explore weather in Argentina.
Popular in October
Where to go in October - average daytime high across popular destinations.
Córdoba
25°C (77°F) Mendoza
24°C (75°F) Salta
23°C (73°F) Villa Carlos Paz23°C (73°F) Buenos Aires23°C (73°F) Mar del Plata18°C (64°F) San Carlos de Bariloche11°C (52°F) San Martín de los Andes
11°C (52°F) Bucket list
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