The first day of spring is at the vernal equinox, when day and night are equal. Find out the exact time and date. When Does Summer Start? When is the summer solstice 2024 and 2025 in the southern and northern hemispheres? When Does Fall Start?
In the Southern Hemisphere summer lasts from the December solstice (December 20 to 23) to the March equinox (March 19 to 21). The start and end dates for summer given on this page are the dates of astronomical summer in the Northern Hemisphere and are based on Coordinated Universal Time (...