The 2027 summer solstice occurs on June 21, 2027 at 14:11 UTC (10:11 AM EDT / 7:11 AM PDT), which marks the first day of astronomical summer in the Northern Hemisphere. Meteorological summer starts earlier, on June 1.
Astronomical vs. meteorological summer
| Astronomical summer | Meteorological summer | |
|---|---|---|
| Starts | June solstice (June 20–22) | June 1 |
| Ends | September equinox (Sept 22–23) | August 31 |
| Used by | Calendars, most media | Weather services and climate records |
"Unofficial" summer in the US runs from Memorial Day weekend to Labor Day weekend.
The longest day of the year
At the June solstice, the Sun is directly over the Tropic of Cancer and the Northern Hemisphere gets its most daylight. North of the Arctic Circle, the Sun doesn't set at all. After the solstice, days slowly get shorter, but the hottest weather usually arrives in July and August, because land and oceans keep warming up.
How many days until summer vacation?
For most students, "summer" starts on the last day of school, not the solstice. In the US, most school districts finish between late May and mid-June (many in the South and West finish in May, while many in the Northeast finish in mid-to-late June). Colleges usually finish in early to mid-May. Check your school district's calendar for the exact date, then use our days between dates calculator to count down to it, or create your own summer vacation countdown and share it.
| Which "summer"? | Starts |
|---|---|
| Unofficial US summer | Memorial Day weekend (late May) |
| Meteorological summer | June 1 |
| Most US school summer breaks | Late May to mid-June |
| Astronomical summer (solstice) | June 21, 2027 |
Summer planning countdown
- 3 months out: book summer camps and vacation rentals, which fill up early.
- 6–8 weeks out: renew passports if needed; processing times get longer in spring.
- 1 month out: service the AC and check the car before road trips.
First Day of Summer dates for upcoming years
| Year | Date | Day |
|---|---|---|
| 2027 | Monday, June 21, 2027 | Monday |
| 2028 | Tuesday, June 20, 2028 | Tuesday |
How many days until First Day of Summer from other dates?
Counting from the start of each date to the start of First Day of Summer 2027 (Monday, June 21, 2027):
| From | Date | Days until First Day of Summer |
|---|---|---|
| Father's Day | Sunday, June 20, 2027 | 1 day |
| 1st of June | Tuesday, June 1, 2027 | 20 days (2 weeks, 6 days) |
| Memorial Day | Monday, May 31, 2027 | 21 days (3 weeks) |
| Mother's Day | Sunday, May 9, 2027 | 43 days (6 weeks, 1 day) |
| Easter | Sunday, March 28, 2027 | 85 days (12 weeks, 1 day) |
| St. Patrick's Day | Wednesday, March 17, 2027 | 96 days (13 weeks, 5 days) |
| Valentine's Day | Sunday, February 14, 2027 | 127 days (18 weeks, 1 day) |
| New Year's Day 2027 | Friday, January 1, 2027 | 171 days (24 weeks, 3 days) |
Need a different start date? Count the days from any date to First Day of Summer.
First Day of Summer quick facts
- The June solstice can fall on June 20, 21 or 22 depending on the year and time zone.
- In the Southern Hemisphere, the June solstice is the first day of winter.
- Midsummer is a major holiday in Sweden and Finland, celebrated around the solstice.
Plan around First Day of Summer
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Frequently asked questions
When is the first day of summer 2027?
Astronomical summer begins at the June solstice: June 21, 2027 at 14:11 UTC (10:11 AM EDT / 7:11 AM PDT). The countdown shows the exact moment in your local time.
How many days until summer vacation?
It depends on your school. Most US districts end the school year between late May and mid-June. Look up your last day of school and use the days between dates calculator or the countdown maker on this site to count down to it.
Is the summer solstice the longest day?
Yes, it has the most daylight of the year in the Northern Hemisphere.
When does summer end?
Astronomical summer ends at the September equinox, around September 22–23.
How long until the First Day of Summer 2027?
The First Day of Summer 2027 is on June 21, 2027 at 14:11 UTC (10:11 AM EDT / 7:11 AM PDT). The live countdown at the top of this page shows exactly how much time is left in days, hours, minutes and seconds, updated every second in your local time zone.
How many weeks until the First Day of Summer?
The chip under the countdown shows the weeks and extra days left until First Day of Summer. The number updates automatically each day, so it's always current.
When is the First Day of Summer 2028?
After 2027, the next First Day of Summer is on Tuesday, June 20, 2028 (UTC date). See the table on this page for more upcoming dates.
Does this First Day of Summer countdown use my time zone?
Yes. First Day of Summer happens at one exact moment worldwide, and the countdown converts that moment to the time zone set on your device.
Sources
More countdowns like First Day of Summer
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June 20, 2027Memorial Day
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December 21, 2026Last reviewed: Wednesday, September 30, 2026. The countdown uses your device's clock and time zone. How we get our dates.