Perseids Meteor Shower 2021: How to Watch Epic Cosmic Event Online Anywhere in the World One of the biggest meteor showers is about to start! Get ready for the Perseids Meteor Shower this 2021 by checking out two online websites where you can watch the event live anywhere in the world. Photo : William McCourt / Getty Images One of the biggest meteor showers is about to start! Get ready for the Perseids Meteor Shower this 2021 by checking out two online websites where you can watch the event live anywhere in the world. If you missed out on the Strawberry Moon, Ring of Fire Eclipse, and Mars kissing Venus, then read carefully: the Perseids is a meteor shower that happens every July 14 to August 24. At its peak, 50 to 100 meteors per hour could be seen in the night sky.