✦Stella
Open appDownload
Sky almanac

The night sky in September 2027

In September 2027, the darkest skies fall around the New Moon on the 30th.

Moon phases

The Moon sets the rhythm of the month — the New Moon brings the darkest skies for faint objects, the Full Moon the brightest nights. Dates are in UTC and may shift a day in your time zone.

First QuarterSep 7
Full MoonSep 16
Last QuarterSep 23
New MoonSep 30

Turn this month into a plan for your sky — Stella has the exact times, weather, and dark sites.

Download on theApp Store
← August 2027October 2027 →

Read next

Getting started

What to look at in the night sky tonight

A simple, no-telescope routine for finding the best things overhead on any clear night.

Dark skies

How to read the Bortle scale (and find darker skies)

What Bortle 1 through 9 actually means for what you'll see — and how to find a darker site near you.

Conditions

Seeing vs transparency: the conditions that decide your night

Two different things stargazers confuse — and why a clear sky isn't always a good sky.

Planning

How to plan a stargazing trip

Turn a clear forecast into a great night out: site, timing, gear, and a backup plan.