Rosario Weather in May

During May, Rosario experiences pleasant daytime temperatures of 21°C (70°F) and cooler nights around 10°C (50°F). Expect quite a bit of rainfall. Around 70 mm (2.8 in) is typical.

Rainfall in Rosario in May

Historically, May sees about 6 days of rain, with a monthly average of 70 mm (2.8 in). Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.

Temperature in Rosario in May

If you're visiting Rosario in May, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Rosario in May

With about 168 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Rosario in May

May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, August and September typically offer the best weather for Rosario.