The Moon on December 18, 2026
Where the Moon sits on December 18, 2026: her sign, phase, and void-of-course windows, computed with the Swiss Ephemeris. Times in UTC; for your own timezone see the live Moon tool.
First Quarter · making aspects all day
With the Moon in Aries, the emotional weather runs bold and headlong. The first quarter is a push and a decision point, act on what you started.
- The Moon makes clean aspects through the day (no long void window).
What a Aries Moon feels like
When the Moon moves through Aries, the mood of the day tilts bold and headlong. The Moon is the fastest body in the sky and she sets the emotional weather, so this is the undertone beneath December 18, 2026, changing again in a day or two as she moves on.
Her phase is the other half. This is a first quarter: a push and a decision point, act on what you started. If you are timing something that matters, the rule of thumb is to build on a waxing Moon, release on a waning one, and steer clear of the void-of-course windows above.
For the void-of-course windows on December 18, 2026 led up front, with what to do about them, see the void of course read for this date.
Timing something on December 18?
Find the exact best window for your city and intention in the free timing finder, or ask The Twelve Rooms for a full reading.
Open the timing finder