The bright Perseids are perhaps the most popular meteor shower of the year, but in 2019 they’ll be washed out by a close-to-full moon during their peak.
Spectators can expect to see just 10-15 Perseids per hour or maybe slightly more on the peak, which is the night of Aug. 12-13, according to NASA meteor expert Bill Cooke. Years without moonlight see much higher rates, and in outburst years (such as in 2016) the rate can be between 150-200 meteors an hour.
Unfortunately, prospective meteor watchers will face a major stumbling block this year. Because the moon will be at a waxing gibbous phase at that time. (the satellite will turn full on Thursday, Aug. 15). This means the moon will seriously hamper viewing of this year’s Perseid display; bright moonlight will flood the sky for almost the entire night, playing havoc with any serious attempts to see meteors. The moon will no doubt wash out all but the brightest of these swift streaks; which will appear to emanate from the northeast part of the sky.