September 1
Saturn moves into Pisces
Labor Day

September 2
Mercury moves into Virgo

September 5
Uranus Retrogrades at 01° Gemini
Mercury Retrograde Shadow Period ends

September 7
Total Lunar Eclipse at the Full Moon at 10:08 AM Pacific Time, the Sun at 15° Virgo opposes the Full Moon at 15° Pisces (also known as the Corn Moon, Barley Moon, Chrysanthemum Moon, or, for some, the Harvest Moon)
Grandparent’s Day

September 11
Patriot Day

September 18
Mercury moves into Libra

September 19
Venus moves into Virgo

September 21
Solar Partial Eclipse at the New Moon at 11:53 AM Pacific Time, the Sun is conjunct the New Moon at the anorectic and most powerful degree of 29° Virgo.
Fun fact: Technically this is the second New Moon in Virgo in 2025.

September 22
Autumnal Equinox
Sun moves into Libra, Mars moves into Scorpio
Mabon
Rosh Hashanah, the Day of Judgement and Atonement and onset of the Days of Awe, begins at sunset

September 23
Rosh Hashanah ends at sunset