Astronomical summer in the Northern Hemisphere starts on Monday, June 21, 2027, the day of the summer solstice. That's 344 days away. Meteorological summer starts earlier, on June 1, and most school summer breaks begin somewhere between mid-June and early July.
Summer is officially two things. Astronomical summer starts at the solstice, Monday, June 21, 2027, when the Earth's axis is most tilted toward the sun and the Northern Hemisphere gets its longest day. Meteorological summer starts three weeks earlier, on June 1, and covers the three warmest months by calendar. Most people mean somewhere between the two.
How many days until summer 2027?
The counter above tracks the astronomical solstice, Monday, June 21, 2027. It updates every second in your own timezone. If you're planning around meteorological summer, set your board to June 1 instead. If you're really counting to the school holidays, set it to whichever day term ends where you are.
Astronomical vs meteorological summer
Astronomical summer runs from the summer solstice, around June 21, to the autumn equinox, around September 22. It's based on the Earth's tilt and orbit and shifts by a day or two each year.
Meteorological summer is simpler: June, July and August in the Northern Hemisphere, December through February in the Southern. It always starts on the first of the month, which makes climate comparisons across decades much cleaner. This is why weather forecasters say "meteorological summer" when they mean June 1.
When school summer breaks start
School summer holidays vary widely, but broad ranges are:
- United States: mid-June to early July, running through late August or early September depending on the state.
- United Kingdom: mid-July to early September, roughly six weeks.
- Sweden and the Nordics: from mid-June through mid-August, one of the longest breaks in Europe.
- Australia: their summer break falls at Christmas, from mid-December to late January.
Counting to the break?
A live counter to school's out, on the classroom projector or the family kitchen shelf, pulls the whole term together.
Related summer dates in 2027
Summer isn't one date. Here's the full stretch of milestones people count to:
| Occasion | Date | Days away |
|---|---|---|
| Meteorological summer starts | Tue, Jun 1, 2027 | 324days |
| Summer solstice | Mon, Jun 21, 2027 | 344days |
| Midsummer's Eve (Sweden) | Fri, Jun 25, 2027 | 348days |
| US Independence Day | Sun, Jul 4, 2027 | 357days |
| Astronomical autumn starts | Wed, Sep 22, 2027 | 437days |
Display your summer countdown anywhere
A live counter belongs on whatever screen the family, school or team is already looking at.
- Classroom projector: a countdown to term end that everyone in the room sees.
- Office break room: a shared counter to the company summer shutdown or a specific team's holiday.
- Cafe or beach bar: a "days until the terrace opens" counter through spring, switching to a "days of summer left" counter after the solstice.
One shareable link, no app to install. When summer arrives, point the same board at the next date, from the autumn term to the next big trip.