Tandil's climate is characterized by mild temperatures, with a moderate range between cold winters and warm summers. Winters are cool, with average temperatures ranging from 7-10°C in May-July, while springs and autumns see gradual warming up to 23-33°C. Summers are hot, but not extreme, peaking at around 35°C in December-January, before gradually cooling down again. The temperature variation between day and night is notable, with nighttime lows often below 0°C during the coldest months. Overall, Tandil's climate is relatively temperate, with a gentle seasonal rhythm.