Because the Earth is tilted on its axis by 23.5 degrees, the two hemispheres experience opposite seasons. When one half of the planet tilts toward the sun, it enjoys summer, while the other half tilts away and experiences winter.
The astronomical definition is what many of us learned in school. It is based on the position of the Earth in relation to the Sun. Summer officially begins at the and ends at the Autumnal Equinox . what month is summer
In the Northern Hemisphere, this occurs roughly on June 20th, 21st, or 22nd . This is the longest day of the year, marking the moment the North Pole is tilted closest to the Sun. Because the Earth is tilted on its axis by 23
: Summer falls between December and February . It is based on the position of the
Summer ends roughly on September 22nd or 23rd , when the Sun crosses the celestial equator, and day and night are of roughly equal length.
You might wonder: If the solstice is the day we get the most sun, why isn't it the hottest day of the year?