How is Summer Solstice calculated?

This event is based on the astronomical moment when the Sun reaches its northernmost point in the sky each year.

When is Summer Solstice 2025?

Name: Summer Solstice
Start: 2025-06-21
End: 2025-06-21
Location: Worldwide

Saturday, 21 June 2025

Summer Solstice is the astronomical point when the Sun reaches its northernmost position in the sky, bringing the longest day of the year in the Northern Hemisphere and marking the start of astronomical summer.

Also known as

June Solstice

Frequently asked questions

When is Summer Solstice 2025?: Summer Solstice 2025 is on Saturday, 21 June 2025.
What day of the week is Summer Solstice 2025?: It falls on Saturday.
How is Summer Solstice calculated?: This event is based on the astronomical moment when the Sun reaches its northernmost point in the sky each year.