When Do The Four Seasons Start And End 2021 -

: Based on Earth's position relative to the Sun. These dates vary slightly each year due to the Earth's elliptical orbit. Tools like the Time and Date Season Calculator can show exact times for your specific location.

For a quick reference, here is how the two systems contrast for the Northern Hemisphere: when do the four seasons start and end

The Earth's axis is tilted at an angle of approximately 23.5 degrees relative to its orbital plane around the Sun. As the Earth orbits the Sun, its axial tilt causes the amount of sunlight that reaches the planet to vary throughout the year. This variation in sunlight leads to the changing seasons. : Based on Earth's position relative to the Sun