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The weather in Rosario in December is hot. The average temperatures are between 18°C and 33°C. Usually the days in December are hot while the nights are a bit cooler.
You can expect about 3 to 8 days of rain in Rosario during the month of December. 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 December 2024.
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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 34° / 20° | 5 | 26 | 0 | 116 mm | Ok | Rosario in January |
| February | 32° / 19° | 5 | 23 | 0 | 139 mm | Good | Rosario in February |
| March | 29° / 16° | 4 | 27 | 0 | 103 mm | Good | Rosario in March |
| April | 25° / 14° | 4 | 26 | 0 | 99 mm | Perfect | Rosario in April |
| May | 20° / 11° | 3 | 28 | 0 | 80 mm | Good | Rosario in May |
| June | 17° / 9° | 2 | 28 | 0 | 41 mm | Good | Rosario in June |
| July | 16° / 8° | 3 | 28 | 0 | 55 mm | Good | Rosario in July |
| August | 19° / 9° | 3 | 28 | 0 | 73 mm | Good | Rosario in August |
| September | 21° / 10° | 4 | 26 | 0 | 93 mm | Good | Rosario in September |
| October | 24° / 12° | 5 | 26 | 0 | 123 mm | Perfect | Rosario in October |
| November | 29° / 16° | 5 | 25 | 0 | 120 mm | Good | Rosario in November |
| December | 33° / 18° | 4 | 27 | 0 | 113 mm | Good | Rosario in December |