Rosario Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Rosario. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Rosario experiences significant rainfall throughout the year, averaging 1141 mm of precipitation annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Despite minor fluctuations, Rosario enjoys fairly consistent precipitation throughout the year. In February, you can expect around 123 mm of precipitation, while in July, Rosario receives about 76 mm.

February, the wettest month, has a maximum daytime temperature of 29°C. During the driest month July you can expect a temperature of 16°C. For more detailed insights into the city’s temperatures, visit our Rosario Temperature page.

Annual Precipitation in Uruguay

The map below shows the annual precipitation across Uruguay. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Rosario’s average annual precipitation is 1141 mm. Let’s compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Rosario:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

For more detailed information about Rosario’s weather, including sunshine hours, humidity levels, and temperature data, visit our Rosario Climate page.