Summer Solstice 20254

Summer Solstice 20254. Summer solstice, the two moments during the year when the path of the sun in the sky is farthest north in the northern hemisphere (june 20 or 21) or farthest south in the southern hemisphere (december 21 or 22). Summer begins with the solstice on thursday, june 20, 2024, marking the astronomical first day of summer in the northern hemisphere.

The sun will not set at the north pole, and at the south pole, it will. The summer solstice marks the start of astronomical summer and the longest day of the year.