Summer Solstice 2025 Longest Day 2025. That’s when the sun is at its highest point in the sky each year. This year the summer solstice is the 21st of december 2025.
The summer solstice, a day steeped in ancient traditions and celestial wonder, is a time when the earth tilts its face towards the sun, basking in the longest embrace of daylight. The sun rises before 6am and sets after 8pm for those in the aedt time zone.