According to NASA, through what date is the 2026 Perseid meteor shower active?

According to NASA, the 2026 Perseid meteor shower is active through August 24, 2026. That date marks the end of the shower’s broad annual activity window, not a second peak.

The Perseids usually begin in mid-July and remain active into late August as Earth moves through dust released by Comet Swift–Tuttle. Activity gradually rises toward the August maximum and then declines as Earth leaves the densest parts of the stream.

The August 24 date can be confused with the peak night, which occurs earlier, around August 12–13 in 2026. Individual meteors may still appear after the listed end date, because sporadic meteors occur throughout the year and meteor streams have gradual edges rather than sharp boundaries.