Rosario Weather in August
In August, Rosario averages a high of 19°C (67°F) and a low of 7°C (44°F), based on 55 years of historical weather data from ROSARIO.
19°C
Average high
67°F
7°C
Average low
44°F
36°C
Record high
96°F · 2009
-8°C
Record low
17°F · 2020
What to Expect in Rosario in August
Typical August days in Rosario reach 19°C (67°F) during the afternoon and cool to around 7°C (44°F) overnight. On average, measurable rain falls on about 20% of days this month. Over the past 55 years, August temperatures in Rosario have ranged from a record high of 36°C (2009) down to a record low of -8°C (2020).
For a day-by-day look or other months, see the full Rosario weather history.