Summer Equinox 2025 Uk. Read on for what to know about the 2025 summer solstice, including when it takes place this year and how to celebrate the astronomical event. In 2025 the autumnal equinox will occur on 22 september at 12.44pm gmt (1.44pm bst).

Royal museums greenwich says the time of this year’s autumn equinox is 12.44pm gmt (1.44pm bst). Experience the 2025 summer solstice at stonehenge on a sunset or sunrise excursion from london or bath!