Under ideal dark-sky conditions, what is the 2026 Perseid meteor shower’s approximate peak ZHR?

Under ideal dark-sky conditions, the 2026 Perseid meteor shower’s approximate peak ZHR is 100 meteors per hour.

ZHR means Zenithal Hourly Rate, an idealized estimate of how many shower meteors an observer might see in one hour. The calculation assumes a perfectly dark sky, a clear horizon, excellent visibility, and the shower’s radiant directly overhead.

In real observing, the number is usually lower. City lights, clouds, haze, trees, the radiant’s altitude, and an observer’s field of view all reduce the visible count. Even during a strong maximum, someone may see only a fraction of the theoretical rate.

The Perseids are considered one of the most dependable annual showers because their peak can produce roughly 100 meteors per hour under favorable conditions. The 2026 display is especially promising because the peak occurs near a dark, new-Moon sky.