2025 Summer Calendar June July August. August 2025 calendar with holidays and celebrations of the united kingdom. Summer 2025 starts on friday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth's axis.

65 rows major events for this 2025 calendar is the world games, the invictus games,. The table below will allow you to view the summer start and end dates for the years 2024, 2025 and 2026.