The temperatures in Rosario in May are usually low and can range between 11°C and 20°C.
You can expect about 3 to 8 days of rain in Rosario during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Rosario in May 2025.
If you’re planning to visit Rosario in the near future, we highly recommend that you review the 14 day weather forecast for Rosario before you arrive.
Temperatures
20° / 11°
Rainy Days
3
Snowy Days
0
Dry Days
28
Rainfall
80
mm
Sun Hours
9.7
Hrs
