Rio de Janeiro Weather in August
In August, Rio de Janeiro averages a high of 27°C (81°F) and a low of 19°C (66°F), based on 23 years of historical weather data from RIO DE JANEIRO.
27°C
Average high
81°F
19°C
Average low
66°F
39°C
Record high
102°F · 1975
11°C
Record low
52°F · 1974
What to Expect in Rio de Janeiro in August
Typical August days in Rio de Janeiro reach 27°C (81°F) during the afternoon and cool to around 19°C (66°F) overnight. On average, measurable rain falls on about 27% of days this month. Over the past 23 years, August temperatures in Rio de Janeiro have ranged from a record high of 39°C (1975) down to a record low of 11°C (1974).
For a day-by-day look or other months, see the full Rio de Janeiro weather history.