When Is First Day Of Spring 2026. When in 2026 is spring? The first day of spring (march equinox or vernal equinox) is when the sun shines directly on the celestial equator passing from south to north and the length of day and night.

Shortest day spring (2026 year) 22 december (10 hours 12 mins 8 sec) Find out the date when spring is in 2026 and count down the days until spring with a countdown timer.