School's out and Memorial Day is over, but is it summer yet? Well, not officially, but we're getting closer. The first official day of summertime barbeque grills, diving into a nearby swimming pool and watching free outdoor movies around Louisville is nearly here.

Here's what you need to know about when summer starts and what it means for Kentucky.

When is the first day of summer?

June 20 marks the first official day of summer in 2025. That's on a Friday this year. It's also the date of the summer solstice.

Is June 20 always the first day of summer?

The first day of summer changes annually, arriving on June 20, 21 or 22. That's because the earth's astronomical year is actually 365.25 days long, writes Space.com .

Story continues after photo gallery.

The longest day of 2025

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