San Martin, Argentina experiences a mild climate with distinct seasonal variations. Winters are cool and wet, with average temperatures ranging from 2-12°C in May and June. Spring arrives in September, bringing warmer temperatures that gradually increase throughout the season, with highs reaching up to 32°C. Summer months of December to February are hot and sunny, with temperatures often soaring above 37°C, while autumn sees a gentle decline in temperature, returning to mild averages by November.