When Is Fall Solstice 2024 Australia. The summer solstice falls between december 21 and 23 in the southern hemisphere each year. The name equinox comes from the latin aequus (equal) and nox (night).

The september equinox will fall at 12:44 utc (7:44 a.m. On december 21, 2024 — the longest day of the year in the southern hemisphere — people in sydney, australia, will experience 14 hours, 24 minutes, and 47 seconds of.