When Do The Four Seasons Start And End
These are defined by equinoxes and solstices. They usually fall around the 20th–22nd of the month. March 20 – June 20 (Spring Equinox) Summer: June 21 – September 21 (Summer Solstice) Autumn: September 22 – December 20 (Fall Equinox) Winter: December 21 – March 19 (Winter Solstice) 🌡️ Meteorological Seasons
Even though the Northern Hemisphere receives the most intense solar radiation on the Summer Solstice in June, it takes several weeks for the Earth's massive oceans and landmasses to absorb that heat and radiate it back into the atmosphere. Because water takes longer to heat up than air, the hottest days of the year usually do not arrive until late July or August.
definition (based on the calendar and temperature cycles). Because Earth is tilted, seasons are reversed between the Northern and Southern Hemispheres. The Old Farmer’s Almanac 2026 Seasonal Dates when do the four seasons start and end
Starts March 1 (Meteorological) or March 19–21 (Astronomical). Ends May 31 or June 20–21.
The astronomical seasons are dictated by the Earth's position relative to the Sun, specifically marked by two (when day and night are nearly equal) and two These are defined by equinoxes and solstices
Starts at the Vernal Equinox ( September 21–23 ) and ends at the Summer Solstice ( December 20–23 ). Meteorological: Starts September 1 and ends November 30 .
If you live in Australia, New Zealand, South America, or southern Africa, the seasons are completely reversed because the Earth is tilted on its axis. When the Northern Hemisphere tilts toward the sun, the Southern Hemisphere tilts away. Because water takes longer to heat up than
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Usually June 20 or 21. This is the day with the most sunlight in the Northern Hemisphere. Fall (Autumnal Equinox): Usually September 22 or 23. Winter ( Winter Solstice ): Usually December 21 or 22. Summary Table of Seasons (Northern Hemisphere) Meteorological Start Astronomical Start Spring Summer Fall September 1 Winter December 1 Why Are There Two Different Start Dates?
calendar (based on Earth's position relative to the sun) or the meteorological calendar (based on temperature cycles and months).
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