How many days until summer?
There are 259 days until first day of summer 2027, which falls on Monday, June 21, 2027. That is 37 weeks, or 176 business days.
First day of summer: dates for the next 10 years
| Year | Date | Exact time (Eastern) |
|---|---|---|
| 2027 | Monday, June 21, 2027 | 10:11 AM EDT |
| 2028 | Tuesday, June 20, 2028 | 4:02 PM EDT |
| 2029 | Wednesday, June 20, 2029 | 9:48 PM EDT |
| 2030 | Friday, June 21, 2030 | 3:31 AM EDT |
| 2031 | Saturday, June 21, 2031 | 9:17 AM EDT |
| 2032 | Sunday, June 20, 2032 | 3:09 PM EDT |
| 2033 | Monday, June 20, 2033 | 9:01 PM EDT |
| 2034 | Wednesday, June 21, 2034 | 2:44 AM EDT |
| 2035 | Thursday, June 21, 2035 | 8:33 AM EDT |
| 2036 | Friday, June 20, 2036 | 2:32 PM EDT |
Related dates
| Memorial Day | Monday, May 31, 2027 | 238 days away |
|---|---|---|
| Independence Day | Sunday, July 4, 2027 | 272 days away |
| Labor Day | Monday, September 6, 2027 | 336 days away |
| First day of fall | Thursday, September 23, 2027 | 353 days away |
The summer solstice
Astronomical summer starts at the June solstice, the moment the Sun reaches its northernmost point in the sky. It is the longest day of the year in the Northern Hemisphere. In the US it falls on June 20 or 21, depending on the year and time zone. Dates here use US Eastern Time, based on the US Naval Observatory.
Meteorological summer runs from June 1 to August 31, and many Americans treat Memorial Day (Monday, May 31, 2027) as the unofficial start of summer and Labor Day (Monday, September 6, 2027) as its end.
Summer planning
- School’s out: most US schools finish between late May and mid-June and return in August or early September, depending on the state.
- Independence Day (Sunday, July 4, 2027) is the biggest summer holiday, so flights and hotels around July 4 fill up early.
- After the solstice, days slowly get shorter even though the hottest weeks of summer are usually still ahead.
Deadlines and rules mentioned here are summaries for general information, not legal, financial or medical advice. See our methodology and official sources, and confirm important dates with the relevant agency.
Frequently asked questions
When does summer start?
Astronomical summer starts at the June solstice, June 20 or 21 in the US. Meteorological summer starts on June 1, and many people count Memorial Day weekend as the unofficial start.
Is the first day of summer the longest day?
Yes. The June solstice 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 or 23. Meteorological summer ends on August 31, and Labor Day is the unofficial end.
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