Yearly weather and climate in Rosario, Argentina
The yearly weather in Rosario runs from around 7°C in July to 31°C in January. May is the driest month at 4 rainy days; March the wettest at 10. Here is the annual climate data, so you know what you are packing for.
Best time to visit
The best weather is typically in Jan, Feb, Apr, Sep, Oct, Nov, Dec, with mild temperatures and lower rainfall.
Sunshine
Expect up to 12.5 hours of clear skies in Dec, but only 7.5 hours in Jun. Pack sunglasses and SPF accordingly.
Rainfall
It rains the most in Mar (163mm over 10 days). A reliable rain jacket is a must-have if visiting then.
Day-to-night swings
Temperatures typically drop by 10°C from day to night. Make sure to pack layers for the evenings.
Average temperatures and rainfall
Daily highs and lows in Rosario, averaged over 10 years of recorded weather, with the number of days it typically rains.
- 3187°2169°8Jan
- 2985°1967°8Feb
- 2882°1966°10Mar
- 2374°1458°7Apr
- 1965°1050°4May
- 1762°847°4Jun
- 1762°744°4Jul
- 1967°847°4Aug
- 2271°1151°5Sep
- 2577°1356°7Oct
- 2882°1762°6Nov
- 3085°1966°8Dec
Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. May is typically driest at 4 days (57mm); Mar the wettest at 10 days (163mm).
| Month | Average high | Average low | Rainy days | Total rainfall |
|---|---|---|---|---|
| Jan | 31°C | 21°C | 8 | 122mm |
| Feb | 29°C | 19°C | 8 | 67mm |
| Mar | 28°C | 19°C | 10 | 163mm |
| Apr | 23°C | 14°C | 7 | 108mm |
| May | 19°C | 10°C | 4 | 57mm |
| Jun | 17°C | 8°C | 4 | 12mm |
| Jul | 17°C | 7°C | 4 | 21mm |
| Aug | 19°C | 8°C | 4 | 33mm |
| Sep | 22°C | 11°C | 5 | 38mm |
| Oct | 25°C | 13°C | 7 | 86mm |
| Nov | 28°C | 17°C | 6 | 50mm |
| Dec | 30°C | 19°C | 8 | 70mm |
Weather data by Open-Meteo.com
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Rosario with Packola.
Get the app