Summer Solstice 2025 Dates Usa

Summer Solstice 2025 Dates Usa. Sunday, sep 22 8:43 am edt. Summer officially begins in the northern hemisphere today (june 20), marking the longest day of the year.

When is the first day of summer in 2025? Summer begins with the solstice on thursday, june 20, 2025, marking the astronomical first day of summer in the northern hemisphere.