Summer Solstice 2025 Date Uk. An equinox (march and september) is when the day and the night are of approximately the same length. In 2025 the summer solstice will occur on saturday 21 june at 03.42 bst (02.42 gmt).
The ‘longest day’ and ‘shortest night’ of the year. These are the bank holidays to look forward to in 2025.
