The climate in Rosario during May can be summarized as mild and reasonably dry.
May is in the fall / autumn in Rosario and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 9°C (48°F) is normal.
Daytime temperature | 20.5°C 68.8°F |
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Nightly temperature | 8.8°C 47.8°F |
Average temperature | 14.6°C 58.3°F |
Daily sunshine | 6.7 hrs |
Avg rainfall | 51 mm 2 ins |
Rainy days | 6 days |
Sea temperature | 17.2°C 63°F |
Humidity | 82% |
Windspeed | 11.2kph 7 mph |
On average May is the 4th driest month of the year in Rosario with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rosario in May 2025.
Hottest month: | January | 30.6°C 87.1°F |
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Driest month: | August | 36mm 1.4ins |
Sunniest month: | November | 10.1hrs |
Coldest month: | June | 16.4°C 61.5°F |
Wettest month: | March | 152mm 6ins |