Moon Phases — September 2026
Full Moon on September 26 at 21:33 UTC, New Moon on September 11 at 01:27 UTC. Each cell shows that day's phase and illumination.
September 2026 · phase for each day (UTC)
Best Nights in September
✦Darkest skies
Sep 9 – Sep 13
Around the New Moon (Sep 11), little moonlight — the best nights for the Milky Way, meteors and faint deep-sky objects.
◐Sharpest Moon detail
Sep 4 · Sep 18
At the quarter Moons the terminator throws long shadows across crater rims — the best nights to photograph lunar surface detail.
○Brightest nights
Sep 25 – Sep 27
Around the Harvest Moon (Sep 26), strong natural moonlight for night walks — but it washes out fainter stars.
Moonrise & moonset where you are
See tonight's moonrise, moonset and best viewing time for your location — then plan the rest of the month from the grid above.