September 2026 offers a busy calendar of night-sky events, including a close pairing of Venus and Spica, the Moon crossing near the Pleiades star cluster, a minor meteor shower, Venus reaching peak brightness, the autumn equinox, and a good window for spotting Neptune. These events matter for stargazers because several require no special equipment, offering easy naked-eye viewing opportunities throughout the month with a few benefiting from binoculars or a telescope.

Highlights include Venus and Spica appearing roughly 1.5 degrees apart on 1–2 September, and the Moon sitting close to the Pleiades on 3 September (repeating on 30 September). The Epsilon Perseids meteor shower peaks on 9–10 September with up to eight meteors per hour, aided by a dark, moonless sky. Venus reaches its brightest point of the year on 22 September at magnitude -4.8, the equinox falls on 23 September marking the start of autumn in the northern hemisphere, and Neptune reaches its best viewing position around 26 September.