Climate almanac
Rosario
Colonia, Uruguay · -34.32°, -57.35°
What is the weather like in Rosario in December?
In December, Rosario is typically 83°F (28°C) during the day and 63°F (17°C) at night. The month brings about 3.3 in (84 mm) of precipitation in total.
- Average high83°F (28°C)
- Average low63°F (17°C)
- Precipitation3.3 in (84 mm)
- Clear or mostly clear days17
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)