| Perspective | Northern Hemisphere End | Southern Hemisphere End | | :--- | :--- | :--- | | | August 31 | February 28/29 | | Astronomical | Sept 22 or 23 (Equinox) | March 20 or 21 (Equinox) | | Cultural (US/UK) | Early September (Labor Day) | Late January/Early Feb (Back to School) |
Summer ends at the March equinox, usually around March 20 or 21 . 2. Meteorological Definition (Based on Temperature)
Determination of the Ending Month of Summer what month does summer end
For most everyday, cultural, and traditional contexts in the Northern Hemisphere, is the correct answer.
The exact date depends on whether you follow the astronomical or meteorological definition of seasons. 1. Astronomical Definition (Based on Earth's Orbit) | Perspective | Northern Hemisphere End | Southern
Astronomical summer is defined by the Earth’s position relative to the sun, beginning with the summer solstice (longest day of the year) and ending with the autumnal equinox (equal day and night).
General Reference
The astronomical season is determined by the Earth's position relative to the sun. Summer officially ends at the , when the sun crosses the celestial equator and day and night are approximately equal in length.
Summer ends on August 31 . Fall begins on September 1. The exact date depends on whether you follow
The month in which summer ends depends on the definition used: (based on Earth’s orbit and solstices) or meteorological (based on annual temperature cycles and calendar simplicity). This report clarifies both standards.