Full moon dates

How it works

The moon's synodic cycle (new moon to new moon) averages about 29.53 days. Starting from a known reference full moon, this adds whole multiples of that cycle length forward in time until it passes today, then lists the next several occurrences — accurate to within a few hours since it uses the average cycle length rather than the moon's slightly irregular real orbit.

FAQ

How accurate are these dates and times?

Within a few hours — this uses the moon's average synodic cycle length rather than modelling its full orbital mechanics, which is accurate enough to know which night to look up, but not to the minute.

Does the full moon look the same everywhere on Earth?

The moment of exact fullness is the same instant worldwide, but your local clock time for it depends on your timezone — times shown here are in your browser's local time.