The moon, tonight and any night.

Tonight’s phase, computed as you read this. Below it, a lookup for the moon you were born under, or any date that matters to you.

Right nowReading the sky…— 

A birthday, an anniversary, any date at all.

Sharpens the clock conversion; the phase barely needs it.

Upcoming lunations

New and full moons over the months ahead, with the Moon’s computed position. Every full moon through 2027 — dates, signs, and names — is on the full moon calendar.

Reading a birthday moon

The Moon runs its full cycle in about 29.5 days, so a birth date pins the phase precisely even when the time is long lost. Astrologers treat the birth phase as a note on temperament — the new-moon start, the first-quarter push, the full-moon glare, the balsamic wind-down — and it pairs naturally with your moon sign, which describes what the Moon was doing in the zodiac rather than against the Sun.

Both are two lines of a much longer document. When you’re ready for the whole thing, run your birth chart — every planet, the houses, and the aspects between them, computed on your device.

Questions, answered

What phase is the moon in tonight?

The dial at the top of this page computes it live on your device: the current phase name, the illuminated percentage, and the sign the Moon occupies right now, timestamped in universal time.

What was the moon phase on my birthday?

Enter your birth date in the lookup above — the phase is exact from the date alone, since the Moon takes about 29.5 days to run through its cycle. Astrologers read a birth phase as a temperament note: new-moon people start things, full-moon people are said to live more publicly.

How often is there a full moon?

Every 29.5 days on average — the synodic month. That drift against the calendar is why the full moon wanders through the month, and why a second full moon occasionally lands in one calendar month: the blue moon.

Does the moon phase affect my moon sign?

They are two different measurements. The phase compares the Moon to the Sun; the moon sign is where the Moon stood in the zodiac. You can have a full moon in any of the twelve signs. Your moon sign is the one astrologers read for emotional temperament.