Argentina
El Chaltén in August: weather & travel advice
This month's data profile
Rain shapes the decision
El Chaltén in August is climatically mixed. The average daily high is around -2 °C. With about 24 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
13/100 · #9
Warmth
#10
Dryness
#8
Sun
#9
Published best categories: none
El Chaltén · AugustPhoto: Alex Proimos from Sydney, Australia · CC BY 2.0Climate facts
- Average high
- -2 °C
- Average low
- -7 °C
- Rainy days (est.)
- 24 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 91 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| July | -3 | -8 | 23 | 128 | 1.5 | 91 | 4.5 | 13 |
| August (selected) | -2 | -7 | 24 | 123 | 2.5 | 91 | 4.9 | 13 |
| September | 0 | -5 | 23 | 108 | 4.0 | 87 | 5.3 | 17 |
How do the previous and next months compare?
Baseline: August (13/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| July | ±0 | -1.2 °C | -0.8 °C | -0.7 | +5.3 mm | -1 h | +0.2 % | -0.4 m/s |
| September | +4 | +2 °C | +1.8 °C | -1.2 | -14.4 mm | +1.5 h | -3.7 % | +0.4 m/s |
All twelve months in context

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Where to stay in El Chaltén
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Useful next decisions
Frequently asked questions
How warm is El Chaltén in August?
The average daily high is around -2 °C, with an average daily low of about -7 °C.
Does it rain a lot in El Chaltén in August?
The curated estimate is about 24 rainy days per month, not a directly measured long-term average. Total precipitation averages around 123 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit El Chaltén?
No month in El Chaltén reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.