Climate Chart of Rosario, Argentina
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Rosario, Argentina, the climate data cover 2013–2023. The monthly mean temperature reaches 25.5 °C in January and falls to 11.5 °C in July, giving a broad sense of the contrast across the year without describing daytime extremes. Rainfall and sunshine also vary by month: the daily means identify distinct high and low points, useful as planning context rather than a guarantee of conditions on any particular day.
Climate overview
Temperature
The warmest monthly mean is 25.5 °C in January, while the coolest is 11.5 °C in July. These are averages for the month, not daytime highs or a description of every day, so visitors should allow for variation around the stated figures. Across the calendar-month means, the unweighted mean temperature is 18.3 °C; it is a summary of those monthly averages, not a day-weighted annual figure.
Rain
The highest monthly mean daily rainfall is 3.83 mm/day in April, compared with the lowest of 0.95 mm/day in June. These are daily mean amounts, not monthly totals, and they do not show how often rain falls or guarantee dry weather in the lower-mean month. The unweighted mean across monthly daily-rainfall means is 2.62 mm/day, a broad summary rather than a forecast for a particular day.
Sunshine
Mean daily sunshine duration is highest at 11.83 hours/day in December and lowest at 6.97 hours/day in July. These averages can help with planning outdoor time, but sunshine duration is not the same as day length. The unweighted mean of the monthly sunshine-duration means is 9.26 hours/day per day; individual days may differ from this calendar-month summary.
Best Travel Time Guide for Rosario, Argentina: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly-average conditions, July is the relevant option, with a monthly mean temperature of 11.5 °C. This average does not indicate daytime highs or settle what conditions will be during a specific visit, so pack for variability. If lower average rainfall is the priority, June has the lowest monthly mean daily amount, 0.95 mm/day; it does not guarantee rain-free days. Prepare for rain when visiting in April, whose highest monthly mean daily rainfall is 3.83 mm/day. For outdoor sightseeing planned around average sunshine duration, December has the highest mean at 11.83 hours/day per day, while July has the lowest at 6.97 hours/day. These figures describe sunshine, not daylight length, and do not predict the weather on individual days.
Climate Data Overview for Rosario, Argentina
Explore the comprehensive climate data for Rosario, Argentina. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 25.5 | 3.62 | 0.00 | 11.46 |
| Feb | 24.0 | 3.71 | 0.00 | 10.69 |
| Mar | 21.6 | 3.31 | 0.00 | 9.85 |
| Apr | 18.7 | 3.83 | 0.00 | 8.09 |
| May | 14.7 | 2.33 | 0.00 | 7.07 |
| Jun | 11.8 | 0.95 | 0.00 | 6.99 |
| Jul | 11.5 | 1.27 | 0.00 | 6.97 |
| Aug | 13.2 | 1.71 | 0.00 | 8.62 |
| Sep | 15.2 | 2.05 | 0.00 | 8.75 |
| Oct | 18.2 | 2.64 | 0.00 | 9.94 |
| Nov | 21.5 | 3.21 | 0.00 | 10.92 |
| Dec | 24.3 | 2.77 | 0.00 | 11.83 |
| Average | 18.3 | 2.62 | 0.00 | 9.26 |
