How Many Days Until Summer?
Summer 2027 begins Sunday, June 20, 2027.
Until Summer 2027
Sunday, June 20, 2027
Summer officially begins at the June solstice, the longest day of the year in the Northern Hemisphere. This countdown updates every second.
| Summer 2027 starts | Sunday, June 20, 2027 |
| Days away | 243 |
| Weeks away | 34 weeks 5 days |
| Months away | 8 months |
| Business days away | 168 |
| Meteorological start | June 1 |
How Many Weeks and Months Until Summer 2027?
Summer 2027 lands on Sunday, June 20, 2027. That is 34 weeks and 5 days away, or roughly 8 months. Here is the same countdown in every unit people ask for.
Weeks are counted as full 7 day blocks. Months are counted by calendar month, so a month can be 28 to 31 days long.
When Is the First Day of Summer? Dates for 2026 to 2031
Here is the exact date and day of the week for the First Day of Summer in each of the next 6 years.
| Year | Date | Day of week |
|---|---|---|
| 2026 | June 20, 2026 | Saturday |
| 2027 | June 20, 2027 | Sunday |
| 2028 | June 20, 2028 | Tuesday |
| 2029 | June 20, 2029 | Wednesday |
| 2030 | June 20, 2030 | Thursday |
| 2031 | June 20, 2031 | Friday |
When does summer start?
Astronomical summer starts at the June solstice, which lands on June 20 or June 21 most years. That is the moment the sun reaches its highest point in the northern sky.
Meteorological summer starts earlier, on June 1, and runs through August 31. Weather agencies use those fixed dates so they can compare seasons year to year.
When does summer end?
Astronomical summer ends at the September equinox, around September 22, when fall begins.
Meteorological summer ends on August 31, which is why many people feel like summer is over before the calendar says so.
How long is summer?
Astronomical summer runs about 94 days, making it the longest season of the year in the Northern Hemisphere.
Meteorological summer is 92 days: 30 days of June, 31 of July, and 31 of August.
All Date Calculators
Frequently Asked Questions
The live countdown above shows the exact days, hours, minutes, and seconds until summer 2027, which begins Sunday, June 20, 2027. It updates every second.
Astronomical summer 2027 begins Sunday, June 20, 2027. Meteorological summer, the version weather agencies use, begins June 1.
Astronomical seasons follow the equinoxes and solstices, so their start dates shift by a day or two each year. Meteorological seasons use fixed calendar months so temperature records stay easy to compare.
There are 34 weeks and 5 days until summer 2027 begins on Sunday, June 20, 2027. That works out to about 34.7 weeks, counted in full 7 day blocks.
Summer 2027 is about 8 months away, or 243 days. Months vary from 28 to 31 days, so the month count is rounded down to whole calendar months.
No. Seasons are reversed south of the equator, so the June solstice starts winter there and the December solstice starts summer. This page uses Northern Hemisphere dates.
Astronomical summer 2026 begins Saturday, June 20, 2026. Meteorological summer always begins June 1.
Astronomical summer 2027 begins Sunday, June 20, 2027. Meteorological summer always begins June 1.
Astronomical summer 2028 begins Tuesday, June 20, 2028. Meteorological summer always begins June 1.
Astronomical summer 2029 begins Wednesday, June 20, 2029. Meteorological summer always begins June 1.