Finchley experiences a temperate climate with distinct seasonal variations. Winters are cool and sometimes chilly, with temperatures often below freezing in January and February, but rising to mild highs by March. Spring brings moderate temperatures, ranging from around 6-17°C, as the days grow longer and warmer. Summer is warm and sunny, with July and August being the hottest months, while autumn sees a gradual cooling trend, with temperatures dropping back into single digits by November.