Olavarria, Argentina experiences mild winters with temperatures ranging from -5°C to 20°C, while summers are warm with highs often reaching 35°C. Spring and autumn months have moderate temperatures, gradually increasing or decreasing throughout the seasons. In May and June, temperatures drop significantly, averaging around 9-10°C, but start rising again in July and August. The warmer months of September to November bring temperatures back up, with October being a transitional month where temperatures rise rapidly.