Summer Solstice 2025 Australia 2024. Astro, astrology first day of summer in usa and uk. After the september equinox, the tilt of earth's axis increasingly angles our south pole towards the sun, so the sun appears further south in the sky each day.

When is summer estival solstice in usa 2024? The summer solstice falls between december 21 and 23 in the southern hemisphere each year.