Climate Insights for Rosario

The climate in Rosario is warm and mild. The average annual temperature is 18°C and approximately 850 mm of precipitation falls per year. April is the wettest month, receiving around 117 mm of rainfall. Rosario is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, December, February. The coldest months are July, June, August, when temperatures can drop to 7°C.The climate in Rosario is warm and mild. The average annual temperature is 65°F and approximately 33.5 in of precipitation falls per year. April is the wettest month, receiving around 4.6 in of rainfall. Rosario is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, December, February. The coldest months are July, June, August, when temperatures can drop to 44°F.

Temperatures in Rosario vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 7°C and an average of 11°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.Temperatures in Rosario vary considerably across the year, with a 44°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 88°F and the mean temperature sits around 78°F. July is the coolest month, with minimum temperatures around 44°F and an average of 52°F. On average, daily temperatures fluctuate by about 20°F between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 7°F shift in average temperatures.

Rosario is a moderately rainy area, receiving approximately 850 mm of precipitation annually, which averages out to around 71 mm per month. The wettest month is April, averaging 117 mm of rainfall. March and February also tend to see above-average precipitation. The driest month is June, with just 20 mm. That's 96 mm less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Rosario is a moderately rainy area, receiving approximately 33.5 in of precipitation annually, which averages out to around 2.8 in per month. The wettest month is April, averaging 4.6 in of rainfall. March and February also tend to see above-average precipitation. The driest month is June, with just 0.8 in. That's 3.8 in less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Rosario is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Rosario is mildly breezy, with an average annual wind speed of 7mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is October, averaging 8mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in February, with average winds dropping to 6mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.

The best time to visit Rosario is during September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 67 mm per month. By contrast, January can be uncomfortably hot with highs reaching 31°C, while July is the coldest period with lows dropping to 7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Rosario is during September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 68°F with modest rainfall averaging 2.6 in per month. By contrast, January can be uncomfortably hot with highs reaching 88°F, while July is the coldest period with lows dropping to 44°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Rosario based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Rosario based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.