What Is The First Day Of Summer 2025 Uk. The summer solstice is the first day of astronomical summer, although the more logical metrological summer begins december 1st / june 1st (depending on hemisphere). Welcome to the complete guide on 2025 bank holidays in the uk.

Brits have already enjoyed their first bank holiday of 2025 with new year’s day falling on wednesday. (in the southern hemisphere, it is around december 21 or 22.) this date is considered to be the first.