When Does Each Season Start Jun 2026

Note: Meteorological seasons are the same dates worldwide for a given hemisphere. They start on the first of the month, always.

For those in the (like North America, Europe, and much of Asia), the 2026 start dates are as follows: Meteorological Start Astronomical Start (2026) Spring Summer Autumn (Fall) September 1 September 22 Winter December 1 December 21 The Southern Hemisphere Flip when does each season start

To make climate statistics easier to compare, meteorologists divide the year into four 3-month periods. Each season starts on the first day of a month. When Each Season Starts in 2026 Note: Meteorological seasons are the same dates worldwide

While meteorological seasons always start on the first of the month, astronomical dates vary slightly each year due to Earth's elliptical orbit. Meteorological Start Astronomical Start (2026) Significance Vernal Equinox; equal day/night Summer Summer Solstice; longest day Autumn September 1 September 22 Autumnal Equinox; equal day/night Winter December 1 December 21 Winter Solstice; shortest day Meteorological Versus Astronomical Seasons | News Each season starts on the first day of a month