Climate almanac

Rosario

Colonia, Uruguay · -34.32°, -57.35°

+ Compare

What is the climate like in Rosario?

The best time to visit Rosario is typically September – April, with trip comfort peaking in November (7.6/10). Rosario is warmest in January, when daily highs average 86°F (30°C), and coolest in July, when lows fall to about 45°F (7°C). The wettest month is typically March and the driest is June; the year sees roughly 38 in (975 mm) of precipitation.

  • Best time to visitSeptember – April — comfort peaks in November (7.6/10)
  • Warmest monthJanuary — average high 86°F (30°C)
  • Coolest monthJuly — average low 45°F (7°C)
  • Wettest monthMarch (4.6 in (117 mm))
  • Driest monthJune (2.0 in (50 mm))
  • Annual precipitation38 in (975 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromLaguna De Los Patos Intl, 42 km away (1957-2025)