Summer Solstice 2024 Australia Dates Usa. Today (june 20) the summer solstice — the longest day of the year in the northern hemisphere — will begin, and it will be the earliest solstice in 228 years. The summer solstice falls between december 21 and 23 in the southern hemisphere each year.
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. Here’s everything you need to know about summer solstice 2024.