Summer And Winter Solstice 2025. When is summer estival solstice in usa 2024? Fall begins with the autumnal equinox, monday, september 22, 2025, 2:19 p.m.
This page also includes new zealand dates for equinox and solstice events over the next few years. A solstice is the day when the sun is at its highest or lowest point in the sky.