When Do The Four Seasons Start And End Instant

Because Earth’s orbit is not a perfect 365 days (it is approximately 365.2422 days), we have leap years. This causes the exact moment of the solstices and equinoxes to shift by roughly six hours each year, occasionally landing on the 20th, 21st, or 22nd depending on the year and time zone.

The primary reason we have two sets of start dates is the "lag" between celestial events and actual weather.

Based on the calendar and temperature cycles. These are broken down into four 3-month blocks (spring, summer, fall, winter), which makes it easier for scientists to calculate statistics. 2. When Do the Seasons Start and End in 2026?

In this system, the start date of a season is different every year and depends on your latitude, altitude, and local climate.

Now that we've covered the start and end dates of the four seasons, let's take a brief look at what you can expect during each one:

Temperatures cool down, daylight hours shrink, and deciduous trees change color and shed their leaves.

In the Southern Hemisphere:

For a quick reference, here is how the two systems contrast for the Northern Hemisphere: