Rosario Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Rosario, Santa Fe Province, Argentina. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Rosario. Expect long, bright days with 294 hours in January and darker periods with just 142 hours in June. The total annual amount of sun is 2558 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.7 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 72% of the time during the day in January, the highest percentage of any month. June has the lowest percentage at 50%.

Rosario enjoys an average of 2558 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

March, Rosario’s wettest month, receives 107 mm (4.2 in) of rainfall and has a maximum daytime temperature of 28°C (82°F). During the driest month July you can expect a temperature of 17°C (63°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Rosario Precipitation page.