El Chaltén weather in August
August in El Chaltén: cold, soaked, with clean air — a gamble, with 22 rainy days.
#10 of 12 months in El Chaltén · #786 of 897 destinations to visit in August · comfort 57/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on El Chaltén in August
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El Chaltén climate normals — August
| Daytime high | 3°C / 37°F | 🧥 cold |
|---|---|---|
| Nighttime low | -1°C / 30°F | |
| Rainfall | 247 mm / 9.7 in | ⛈ soaked |
| Rainy days | 22 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | -2°C / 28°F | |
| Sunshine | 5.8 h/day | |
| Daylight | 10 h | |
| Wind | 10 km/h / 6 mph | |
| Snowfall | 172.8 cm / 68 in | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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El Chaltén in August — FAQ
- Is August a good time to visit El Chaltén?
- August in El Chaltén: cold, soaked, with clean air — a gamble, with 22 rainy days. It ranks #10 of 12 months for El Chaltén on SeasonMap's comfort score (57/100).
- What is the weather like in El Chaltén in August?
- In August, El Chaltén averages a daily high of 2.8°C and a low of -1.2°C, with about 246.8 mm of rain over roughly 22.4 rainy days.
- What is the air quality in El Chaltén in August?
- El Chaltén has a mean US Air Quality Index of about 29 in August.
- Does it snow in El Chaltén in August?
- El Chaltén sees roughly 172.8 cm of snowfall in August.