When Does Fall Officially Start 2024 Uk. Find out more about equinoxes and solstices The seasons are defined as spring (march, april, may), summer (june, july, august), autumn (september, october, november) and winter (december, january,.
When do the four british seasons dates officially begin? The first day of fall is sunday, september 22, 2024—the same day as the autumn equinox—in the northern hemisphere.