Rosario weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: February – June, August – December
What is the weather like in Rosario in August?
In August, Rosario is mild: daytime highs average 18 °C, and nights cool down to about 8 °C. Expect around 6 hours of sunshine a day. Rain is rare: about 5 days bring 54 mm in total. All in all, August is an excellent month for a holiday in Rosario.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 75 | 90 | 88 |
| Day | 16° | 18° | 21° |
| Night | 7° | 8° | 10° |
| Sun | 6 h | 6 h | 7 h |
| Rain days | 5 | 5 | 6 |
More details for August
- Daylight
- 10 h 52 min07:41 – 18:34
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 42 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−3America/Argentina/Cordoba
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %55 %
- Few rainy daysweight 30 %96 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- A jumper for the evenings
Rosario in August: quick answers
Is Rosario hot in August?
No. In August, Rosario is mild: daytime highs average 18 °C and nights drop to about 8 °C.
Does it rain much in Rosario in August?
Rain is rare: about 5 days bring 54 mm in total.
Rosario month by month
The whole year in RosarioAll destinations: ArgentinaWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences