Moon Calendar — May 2025
The full moon in May 2025 is May 12, 2025 — the Flower Moon. Every day of the month is drawn below with its phase and how much of the disc is lit. Tap any day for that night's detail.
Dates and phases are shown in UTC until the page loads, then in your own time zone.
Primary phases in May 2025
| Phase | When | Name | |
|---|---|---|---|
| First quarter | May 4, 202513:51 UTC | ||
| Full moon | May 12, 202516:55 UTC | Flower Moon | |
| Last quarter | May 20, 202511:58 UTC | ||
| New moon | May 27, 202503:02 UTC |
More moon for May 2025
Phase is the same worldwide, but moonrise and moonset depend on where you are — pick your city for tonight's times. See every phase in 2025, the full moon calendar with traditional names, or the other months. Sunrise and sunset for the same dates are on the sunrise & sunset pages.
When is the full moon in May 2025?
May 12, 2025 at 16:55 UTC — the Flower Moon. The calendar above converts that to your own time zone when it loads, which can move it to the day before or after.
When is the new moon in May 2025?
May 27, 2025 at 03:02 UTC. New moon is the darkest night of the month and the best one for stargazing.
Why does the calendar show a different date than another site?
A moon phase happens at a single instant everywhere on Earth, so the calendar date it lands on depends on your time zone. A full moon at 02:00 UTC is still the previous evening across the Americas. This page shows UTC before its JavaScript runs and your own dates afterwards.
What do the percentages mean?
How much of the moon's disc is lit at midday on that date — 0% at new moon, 100% at full. The shape drawn in each cell is the same figure as a picture.