Summer Countdown 2027

What is the Summer Countdown?

The Summer Countdown shows you exactly how long it is from the current date and time until summer arrives in the Northern Hemisphere. Summer is the favorite season of many people, and this countdown to summer lets you see quickly how much longer you have to wait. There is nothing to set up: as soon as the page loads, the countdown shows how long it is until summer, down to the second, and updates in real time. Check back as often as you like.

When does summer begin?

In the Northern Hemisphere, summer begins on the summer solstice, which is the longest day of the year (the day with the most hours of daylight). The exact date of the solstice varies from year to year and with your time zone: it falls on June 20, June 21, or June 22. The solstice is a single moment, so this countdown runs to that exact minute, shown under the countdown in your local time.

How long does summer last?

Summer in the Northern Hemisphere lasts about 93 days and 16 hours, from the June solstice to the September equinox. It is the longest season of the year. Earth is farthest from the sun in early July and moves most slowly in its orbit then, so it takes longest to pass from the solstice to the equinox. Summer is almost five days longer than winter.

Common Summer Countdown questions

When does this countdown end?

At the exact moment of the June solstice, from the times published by the US Naval Observatory. The date and time under the countdown show that moment in your own time zone.

Is this countdown for the Southern Hemisphere too?

No. South of the equator the seasons are reversed, so the June solstice is the first day of winter there, and summer begins at the December solstice.

Why does summer not start on June 1 here?

June 1 is the start of meteorological summer, which weather services use because it splits the year into whole months. This countdown uses the astronomical start of summer, the solstice.

Does the countdown keep running if I switch tabs?

Yes. The page reads the current time on each tick, and an inactive tab catches up the moment you return.