It's also when the Earth will be the most within the stream of Swift-Tuttle.
The Perseid meteor shower occurs every year as Earth passes through the trail of dust and debris left behind by Comet Swift-Tuttle.
Milky Way is seen during the annual Perseid meteor shower above Salime Reservoir, near Grandas de Salime, Spain August 11, 2017. It last passed near Earth during its orbit around the sun in 1992, and the next time will be in 2126.
The Perseid meteor shower generally starts in mid-July and peaks around August 12, as a result of the Earth passing through a trail of debris associated with a comet known as Swift-Tuttle. "You want to get away from bright lights of the city, so if you can go out into the countryside somewhere, maybe up north, where the sky is really dark, you'll be able to see shooting stars and more meteors". The moonlight will make a lot of the dimmer meteors invisible, which will lower the overall count. Some meteor showers are slow, but we are moving into the Perseid stream so they are coming at us quite swiftly.
The greatest numbers of meteors will be between midnight and just before dawn on the mornings of August 11-13. We can look forward to a decent display, even though they aren't going to be raining down from the sky.
Hundreds of the meteors are expected to be visible from across the world, weather depending.
But while viewing meteors may be more hard this year, enterprising viewers who trek out to rural or suburban areas with less light pollution can still see some meteors.
The greatest meteor shower in USA history occurred with the Leonids on November 12, 1833, with 20 to 30 meteors reported per second.
McGillivray will be part of a group who will be watching at Aldergrove Lake Park in Langley on Saturday night.
In Monroe County, the Florida Keys Astronomy Club is heading to Long Key State Park, mile marker 67.4 oceanside, to view the Perseids.