The year is commonly divided into four seasons: spring, summer, fall (or autumn), and winter. Because we divide a year into 12 months, each season lasts about three months.

In the Northern Hemisphere, the June solstice (aka summer solstice) occurs when the Sun reaches its highest and northernmost points in the sky. It marks the start of summer in the northern half of the globe.

In astronomical terms, the start of summer can be defined very precisely: it begins on the summer solstice, which occurs on June 20 or 21 in the Northern Hemisphere and on December 21 or 22 in the Southern Hemisphere.

So if you’re ready to get into the summer spirit before it officially arrives in June, read on for some of the most fascinating and unexpected fun facts about summer.

The Official 2026 Ohio Summer Events Guide is easy to use and organized by region and month. Celebrate summer in Ohio with five festivals and events from all 88 counties!

Warm up your brain with these fun and fascinating facts about summer including everything from summertime activities to nature and more.

The meaning of SUMMER is the season between spring and autumn comprising in the northern hemisphere usually the months of June, July, and August or as reckoned astronomically extending from the June solstice to the September equinox.