Sidcup experiences a mild climate with temperatures gradually warming up as the year progresses. Winters are chilly, with average temperatures ranging from around 4-7°C, and occasional drops below 0°C. Spring brings moderate temperatures, averaging between 6-11°C, with March often being one of the warmer months. Summer is warm to hot, with July and August typically seeing highs above 20°C, although some days can reach as high as 30°C. Autumn temperatures are generally mild, averaging around 8-16°C, before cooling down again in winter.