1st Day Of Spring 2026. The first day of spring, also known as the vernal equinox, is a momentous occasion that heralds the arrival of a season marked by blooming flowers, longer days, and a sense of renewal. How are first day of spring dates determined?
The first day of spring, also known as the vernal equinox, falls around march 20th or 21st each year in the northern hemisphere. The first day of spring is in 2026 on march 20.