When is the first day of summer?
The first day of summer is on June 21, 2027.
That is 288 days away, on a Monday.
Upcoming dates
- 2027Mon, June 21
- 2028Tue, June 20
- 2029Wed, June 20
- 2030Fri, June 21
Astronomical vs meteorological summer
This countdown uses astronomical summer, which starts at the solstice. Meteorologists instead use fixed dates: meteorological summer runs from 1 June to 31 August.
So depending on the definition, summer starts either on 1 June or around 21 June.
Northern and Southern Hemisphere
These dates are for the Northern Hemisphere. South of the equator the seasons are flipped, so while Europe and North America head into summer, Australia and South Africa are starting winter.
Count down to the first day of summer
Put a live countdown to the first day of summer on your Home Screen with NanoCount, in days, weeks or working days. Free, no subscription, no ads.
Frequently asked questions
- When is the first day of summer?
- The first day of summer is on June 21, 2027.
- What day of the week is the first day of summer?
- This year, the first day of summer falls on a Monday.
- How many days until the first day of summer?
- 288 days.