Frequently the average temperatures in Rosario during the month of May is 12. Through the month the highs are about 19 with lows about 9 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 12 |
| High Temperature | 19 |
| Low Temperature | 9 |
Useful Links: Rosario Weather: Average Weather & Yearly Climate