How many days until Summer?
Summer begins at the solstice — around 21 June in the Northern Hemisphere and 21 December in the Southern — so the days until summer depend on where you live. This free countdown timer shows exactly how long is left until the next summer in each hemisphere.
How many days until Summer?
How many days until Summer?
Days until next Summer in the Northern Hemisphere:
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Days until next Summer in the Southern Hemisphere:
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About the ‘How many days until summer?’ Countdown timer
1. How the ‘How many days until Summer’ countdown timer works?
The countdown timer tells you the entire number of days until the next summer in the Northern and also in the Southern Hemisphere (sees detailed info and explanation of the differences below).
2. When does summer begin?
In the northern hemisphere (for example in the US and UK) summer begins June 1 and the summer months are June, July and August, while in the southern hemisphere (for example in New Zealand and Australia) summer conventionally begins on December 1 and ends on the next year February 28 (if it’s a leap year, than summer ends on February 29).
3. What is Astronomical Summer and When Does It Begin?
From an astronomical view, the equinoxes and solstices would be the middle of the respective seasons, but sometimes astronomical summer is defined as starting at the solstice, the time of maximal insolation, often identified with the 21st day of June to 23rd day of September in the northern hemisphere, and from December 21 to March 20 in the southern hemisphere.
Frequently asked questions
When does summer start?
Astronomical summer starts at the solstice, around 21 June in the Northern Hemisphere and around 21 December in the Southern Hemisphere.
How many days until summer?
The countdown shows the exact number of days, hours and minutes left until the next summer solstice for your hemisphere.
Why does summer start on different dates?
The exact solstice date shifts by a day or two each year because the Earth's orbit does not match the calendar exactly, and it differs between hemispheres.
What is the difference between astronomical and meteorological summer?
Astronomical summer starts at the solstice, while meteorological summer starts on 1 June in the north and 1 December in the south to align with the calendar.
Which is the longest day of the year?
The summer solstice is the longest day, with the most daylight, after which the days slowly start to get shorter.