Santiago Weather in August
In August, Santiago averages a high of 19°C (65°F) and a low of 4°C (39°F), from 26 years of daily records (1977–2025).
19°C
Average high
65°F
4°C
Average low
39°F
31°C
Record high
88°F · August 18, 2014
-6°C
Record low
21°F · August 10, 1993
What August Is Like in Santiago
- 5 of the 10 warmest Augusts on record in Santiago have come since 2010.
- The coldest August reading, -6°C (21°F) on August 10, 1993, has not been matched in 32 years.
- On average, 3 nights in August drop below freezing.
- The warmest August in the record was 2016; the coldest was 1995.
At least 1 mm of rain falls on 12% of August days, and the month averages 32 mm in total.
Warmest: 2016 (21.3°C)Latest: 2024 (17.1°C)10-year averageLong-run average (18.5°C)
Look Up a Day in August
See the weather in Santiago on any August date, year by year.
Source: NOAA GHCN-Daily, Arturo Merino Benitez Intl (1973–2025); Quinta Normal (2005–2025). Averages cover 1977–2025. How we compute this