Summer Solstice Australia 2024 Weather. Thursday, june 20 is the official first day of northern astronomical summer for 2024 — summer solstice — which is the longest day of the year for this half of the planet. The word solstice comes from latin ' solstitium ' meaning the sun stands still.

The word solstice comes from latin ‘ solstitium ‘ meaning the sun stands still. Summer solstice 2024 (beginning of astronomical summer) on the day of the summer (june) solstice, the solar disk, moving along the ecliptic, will fall into its northernmost point and will be.