How To Celebrate Summer Solstice In 2025 Dates

How To Celebrate Summer Solstice In 2025 Dates. Ways to celebrate the summer solstice. In 2025, the summer solstice will occur on june 21, at 02:42 gmt in the northern hemisphere, and on december 21, 2025 at 09:20 gmt in the southern hemisphere.

Lammas/lughnasadh (august 1, 2025)lammas, or. Marks the longest day of the year in the northern hemisphere, the official start of summer.