El Chaltén weather in October
October in El Chaltén: cold, soaked, with clean air — fine if you can take 21 rainy days.
#6 of 12 months in El Chaltén · #629 of 897 destinations to visit in October · comfort 71/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on El Chaltén in October
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El Chaltén climate normals — October
| Daytime high | 6°C / 42°F | 🧥 cold |
|---|---|---|
| Nighttime low | 1°C / 34°F | |
| Rainfall | 236 mm / 9.3 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 0°C / 31°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 13.6 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 151.6 cm / 59.7 in | |
| Air quality (US AQI) | 26 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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El Chaltén in October — FAQ
- Is October a good time to visit El Chaltén?
- October in El Chaltén: cold, soaked, with clean air — fine if you can take 21 rainy days. It ranks #6 of 12 months for El Chaltén on SeasonMap's comfort score (71/100).
- What is the weather like in El Chaltén in October?
- In October, El Chaltén averages a daily high of 5.8°C and a low of 1.1°C, with about 235.7 mm of rain over roughly 20.6 rainy days.
- What is the air quality in El Chaltén in October?
- El Chaltén has a mean US Air Quality Index of about 26 in October.
- Does it snow in El Chaltén in October?
- El Chaltén sees roughly 151.6 cm of snowfall in October.