How many days until Summer?
Astronomical summer in the Northern Hemisphere begins at the June solstice, around June 20–21.
6 days until Summer
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Days
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Hours
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Minutes
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Seconds
Date
Sunday, June 21, 2026
Day of the Week
Sunday
Weeks & Days
0w 6d
Months (approx)
0.2
Business Days
5
Total Days
6
When is Summer?
The start of summer is set by the June solstice, an astronomical moment that shifts slightly each year. This page computes it with Jean Meeus’ solstice algorithm rather than using a fixed date.
The June solstice is the longest day of the year in the Northern Hemisphere, when the Sun reaches its highest point in the sky.
It marks the start of astronomical summer in the north and astronomical winter in the Southern Hemisphere.
The June solstice explained
The June solstice is the moment the Sun reaches its northernmost point in the sky, giving the Northern Hemisphere its longest day and shortest night of the year. This countdown tracks that astronomical moment; meteorological summer, used by forecasters, starts on June 1 instead.
At high northern latitudes the solstice brings the “midnight sun,” when the Sun never fully sets, while the Southern Hemisphere experiences its winter solstice on the same day.
Summer dates by year
| Year | Date | Day of the week |
|---|---|---|
| 2026next | June 21 | Sunday |
| 2027 | June 21 | Monday |
| 2028 | June 20 | Tuesday |
| 2029 | June 21 | Thursday |
| 2030 | June 21 | Friday |
| 2031 | June 21 | Saturday |
| 2032 | June 20 | Sunday |
Frequently Asked Questions
How many days until Summer?
Summer is on Sunday, June 21, 2026 — that is 6 days away. The live countdown above updates to the exact time remaining in your local time zone.
What day of the week is Summer 2026?
Summer falls on a Sunday in 2026.
When does summer officially start?
Astronomical summer begins at the June solstice (around June 20–21). Meteorological summer, used by forecasters, starts on June 1.
Why is the June solstice the longest day?
The Sun reaches its highest, northernmost path across the sky, so it stays above the horizon longer than on any other day in the Northern Hemisphere.
Is the summer solstice always on June 21?
No. It falls on June 20 or 21 in most years (very rarely June 22), depending on the year and your time zone.
Related Countdowns
Browse every days-until countdown, set your own countdown timer, count the exact days between any two dates with the days calculator, or open the calendar.