Summer Solstice 2025 Europe Time. The day with the highest negative value is saturday, september 13 2025. In 2025, the summer solstice in the northern hemisphere will occur on june 20, 2025, at 10:42 pm edt (or 2:42 am utc on june 21).

In 2025 the june solstice in europe will be on saturday , 21st of june 2025, around 04:41 pm; It marks the longest day of the year and the arrival of the summer season.