First Day Of St Day Of Summer 2024 Celebrations. On june 20, 2024, the summer solstice marks the official beginning of summer, signaling longer days and warmer weather ahead. When is the first day of summer?

The 2024 winter solstice, the shortest day of the year, happens on saturday, dec. The summer solstice, often regarded as the longest day of the year, marks a pivotal moment in the earths orbit.