Moon Phase Calendar : December, 2025
Full Moon :
New Moon :
First Quarter :
Last Quarter :
The moon phase is the shape of the sunlit Moon we see from Earth, cycling through new moon, first quarter, full moon and last quarter about every 29.5 days. Our Moon Phase Calendar is an easy way to find the lunar phase for any month and to see when the next full moon and new moon fall — the best place to track the lunar calendar.
How to use the Moon Phase Calendar?
When you open our Moon Phase Calendar you always see the current month first, with a graphical view of the Moon phase for every day of the month. Use the arrow icons on the left and right of the calendar to move to the previous or next month.
You can also see the moon phase and other data like moon illumination, moon distance and moon age by clicking on a date.
Exact moon phases in the Lunar Calendar
Frequently asked questions
What is the moon phase today?
The calendar shows today's moon phase at the top, along with details like illumination and moon age. Open it to see the current phase for your date.
How often do the moon phases repeat?
The full cycle from one new moon to the next, called a lunar month, takes about 29.5 days, moving through new, first quarter, full and last quarter.
When is the next full moon?
The calendar marks the date of the next full moon. Browse forward with the arrows to see upcoming full and new moons for any month.
What are the main moon phases?
The four main phases are new moon, first quarter, full moon and last quarter, with waxing and waning crescent and gibbous phases in between.
What is moon illumination?
Moon illumination is the percentage of the Moon's visible face lit by the Sun, from 0% at new moon to 100% at full moon.