San Pedro, Argentina experiences a temperate climate with distinct seasonal changes. In summer, from December to February, temperatures are warm to hot, often reaching up to 38°C in January and February, but dropping slightly at night. Spring, from September to November, is mild, with average highs around 35-37°C, while autumn, from March to May, sees a gradual cooling trend, with daytime temperatures still pleasant, albeit cooler nights. Winter, from June to August, brings the coolest temperatures of the year, with averages ranging from 3°C in August to just above freezing point.