The weather in Rosario in January is hot. The average temperatures are between 20°C and 34°C.
You can expect about 3 to 8 days of rain in Rosario during the month of January. 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 January 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
34° / 20°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
116
mm
Sun Hours
11.2
Hrs
