When Does Summer Start in 2027?
Summer 2027 starts on Monday, June 21, 2027 in the Northern Hemisphere, at 14:10 UTC (10:10 AM EDT).
Sources: US Naval Observatory Updated
251 days to go: open the live countdown
First day of summer dates, 2027 to 2036
| Year | Date | Day | Starts (UTC) | US Eastern time |
|---|---|---|---|---|
| 2027 | Monday | June 21, 2027, 14:10 UTC | Monday, June 21, 2027 at 10:10 AM EDT | |
| 2028 | Tuesday | June 20, 2028, 20:01 UTC | Tuesday, June 20, 2028 at 4:01 PM EDT | |
| 2029 | Thursday | June 21, 2029, 01:48 UTC | Wednesday, June 20, 2029 at 9:48 PM EDT | |
| 2030 | Friday | June 21, 2030, 07:31 UTC | Friday, June 21, 2030 at 3:31 AM EDT | |
| 2031 | Saturday | June 21, 2031, 13:17 UTC | Saturday, June 21, 2031 at 9:17 AM EDT | |
| 2032 | Sunday | June 20, 2032, 19:08 UTC | Sunday, June 20, 2032 at 3:08 PM EDT | |
| 2033 | Tuesday | June 21, 2033, 01:01 UTC | Monday, June 20, 2033 at 9:01 PM EDT | |
| 2034 | Wednesday | June 21, 2034, 06:44 UTC | Wednesday, June 21, 2034 at 2:44 AM EDT | |
| 2035 | Thursday | June 21, 2035, 12:32 UTC | Thursday, June 21, 2035 at 8:32 AM EDT | |
| 2036 | Friday | June 20, 2036, 18:31 UTC | Friday, June 20, 2036 at 2:31 PM EDT |
Dates are for the Northern Hemisphere and are given in UTC and US Eastern time. In time zones far from these the calendar date can be a day earlier or later.
How the date is set
Astronomical summer in the Northern Hemisphere begins at the June solstice, which falls on June 20 or 21 in most years.
At the June solstice the Sun reaches its northernmost point in the sky, giving the Northern Hemisphere its longest day of the year.
Good to know
- Meteorologists count summer from June 1 instead.
- In the Southern Hemisphere the June solstice is the start of winter, and summer begins at the December solstice.
Frequently asked questions
What day does summer start in 2027?
Monday. Summer 2027 starts on June 21, 2027.
How many days until the first day of summer?
251 days, counted from October 13, 2026. The live countdown shows the number for today in your time zone.
Is the first day of summer on the same date every year?
No. Astronomical summer in the Northern Hemisphere begins at the June solstice, which falls on June 20 or 21 in most years.
When does summer start in 2028?
Tuesday, June 20, 2028.
Sources
- US Naval Observatory: Earth's Seasons — published equinox and solstice times