When Is Spring 2025 In London Calendar. Spring 2025 starts on tuesday, march 19th in the northern hemisphere, with daylight time lengthening and the leaves begining show on the trees with the changing tilt of the. The seasons are defined as spring (march, april, may), summer (june, july, august), autumn (september,.

London fashion week is just around the corner: The west end theatre guide to what shows are playing in london theatres during 2025.