First Day Of Summer 2024 Date In Usa. This year's summer solstice will arrive this thursday on june 20 for the northern hemisphere, according to nasa. In the southern hemisphere, it will occur on december 21, 2024.
Summer begins with the solstice on thursday, june 20, 2024, marking the astronomical first day of summer in the northern hemisphere. The first day of summer (june solstice) is when.