
Full Moon May 2025: Flower Moon Date & Meaning
There’s a moment in spring when the nights grow shorter and the flowers finally show up — and that’s exactly when the May full moon arrives. On May 12, 2025, the Flower Moon will peak at 20:02 UTC, according to moon phase data from Griffith Observatory (public observatory in Los Angeles). This guide walks through the date, name, spiritual meanings, and common questions so you know exactly what to expect.
Date of Full Moon: May 12, 2025 · Peak Time (UTC): 20:02 · Traditional Name: Flower Moon · Next Full Moon: June 11, 2025 (Strawberry Moon)
Quick snapshot
- Full moon occurs May 12, 2025 (Catalina Sky Survey)
- Peak illumination at 20:02 UTC on May 12 (Griffith Observatory)
- Traditional name is Flower Moon (Farmers’ Almanac)
- Next full moon is Strawberry Moon on June 11, 2025 (Catalina Sky Survey)
- Whether the Flower Moon qualifies as a supermoon in 2025 (Catalina Sky Survey)
- Scientific consensus on full moon effects on behavior (NASA Science)
- Exact zodiac sign of the full moon (sources vary) (Catalina Sky Survey)
- Whether full moon influences sleep patterns specifically (studies show mixed results) (Catalina Sky Survey)
- April 13, 2025 – Pink Moon (Catalina Sky Survey)
- May 12, 2025 – Flower Moon (this event) (Griffith Observatory)
- June 11, 2025 – Strawberry Moon (Catalina Sky Survey)
- Next full moon: Strawberry Moon on June 11, 2025 (BBC Sky at Night Magazine)
- Blue moon expected in 2026 (second full moon in a month) — not in May 2025 (Farmers’ Almanac)
Five key details, one pattern: the May 2025 full moon sits between the Pink Moon and the Strawberry Moon, marking the last full moon of spring in the Northern Hemisphere.
| Label | Value | Source |
|---|---|---|
| Date | May 12, 2025 | Griffith Observatory |
| Peak Time (UTC) | 20:02 | Griffith Observatory |
| Traditional Name | Flower Moon | Farmers’ Almanac |
| Supermoon? | Not confirmed for 2025 (definition varies) | Farmers’ Almanac |
| Next Full Moon | June 11, 2025 (Strawberry Moon) | Catalina Sky Survey |
| Origin of Name | Algonquin tribes named it for spring flowers | Farmers’ Almanac |
| Phase Duration | Full moon appears full for about 2–3 days | NASA Science |
What day is the full moon in May 2025?
What time is the full moon in May 2025?
- The Flower Moon reaches 100% illumination at 20:02 UTC on May 12, 2025, according to Griffith Observatory (public observatory in Los Angeles).
- For observers in the British Isles, that translates to 21:02 BST. In Australia (AEST), the peak occurs around 6:02 a.m. on May 13 (ELLE Australia).
What is the name of the May 2025 full moon?
- It is traditionally called the Flower Moon, a name used by Algonquin tribes to mark the appearance of spring flowers (Farmers’ Almanac (long-standing reference for astronomical events).
- Other names include the Corn Planting Moon, Milk Moon, and Hare Moon, depending on cultural traditions.
The implication: The exact local time depends on time zone, but the peak is absolute at 20:02 UTC.
What is special about May’s full moon?
Why is it called the Flower Moon?
- The name originates from Native American tribes who observed that May is when spring flowers bloom in abundance (Farmers’ Almanac).
- It is the last full moon of spring in the Northern Hemisphere, marking a time of growth and renewal.
Is the May 2025 full moon a supermoon?
- Some sources call the Flower Moon a supermoon because the Moon is near perigee — the closest point to Earth in its orbit. Farmers’ Almanac defines a supermoon as a full moon that is at least 90% of the way to perigee.
- However, Catalina Sky Survey (NASA-funded asteroid survey) does not label the May 2025 full moon as a supermoon. The classification depends on the exact distance threshold used.
If the Flower Moon qualifies as a supermoon, it appears about 7% larger and 15% brighter than an average full moon, per the Farmers’ Almanac. That difference is subtle but noticeable to regular skywatchers.
The catch: Whether you call it a supermoon or not, the May moon offers a notably bright night.
Do we have two full moons in May 2025?
What is a blue moon?
- A blue moon is the second full moon in a single calendar month. It occurs roughly every 2.5 years (Farmers’ Almanac).
- Since there is only one full moon in May 2025, the Flower Moon is not a blue moon.
When is the next blue moon?
- The next blue moon is expected in May 2026, according to lunar cycle patterns (Farmers’ Almanac). That will be the second full moon in May 2026.
The pattern: The Flower Moon sets the stage for the 2026 blue moon, but it’s no less worth watching.
What is the spiritual meaning of the May full moon?
What rituals are associated with the Flower Moon?
- Spiritual practitioners often use the Flower Moon for planting seeds — both literal and metaphorical. Common rituals include setting intentions, meditating on growth, and expressing gratitude (Bustle (lifestyle publication)).
- ELLE Australia (fashion and lifestyle magazine) describes the full moon as an invitation to “plant ideas and nurture them.”
What is the astrological significance of the May 2025 full moon?
- Astrologically, the Flower Moon is associated with the zodiac sign Scorpio (though exact placements vary). It is considered a powerful time for emotional release and transformation.
- Bustle frames the May 2025 Flower Moon as a “call for transformation from seed to bloom.”
Spiritual meanings are interpretive, not scientific. For those drawn to lunar rituals, the Flower Moon offers a structured moment for intention-setting. Skeptics can simply enjoy the brighter night sky.
What this means: The spiritual significance is subjective, but the moon’s beauty is universal.
What should you avoid during a full moon?
Does the full moon affect behavior?
- Many people report changes in sleep patterns or emotions during a full moon, but NASA Science notes that scientific studies have not found consistent evidence linking the full moon to human behavior.
- Common anecdotal beliefs include increased anxiety, vivid dreams, and restlessness.
What are common full moon superstitions?
- Folklore advises avoiding major decisions, starting new projects, or confrontations during a full moon. Instead, it recommends reflection, self-care, and releasing what no longer serves you (Bustle).
The takeaway: The moon’s influence may be anecdotal, but the ritual of reflection is real.
Timeline: Full moons around May 2025
- April 13, 2025 — Pink Moon (Catalina Sky Survey)
- May 12, 2025 — Flower Moon (this event) (Griffith Observatory)
- June 11, 2025 — Strawberry Moon (BBC Sky at Night Magazine (UK astronomy publication))
The pattern: three full moons in three consecutive months, each carrying a seasonal name rooted in agricultural or natural observation.
Clarity: What we know and what we don’t
Confirmed facts
- Full moon date: May 12, 2025 (Griffith Observatory)
- Peak time: 20:02 UTC (Griffith Observatory)
- Name: Flower Moon (Farmers’ Almanac)
- Only one full moon in May 2025 (Catalina Sky Survey)
What’s unclear
- Whether the Flower Moon is a supermoon (Catalina Sky Survey)
- Scientific evidence for full moon effects on behavior (NASA Science)
- Specific zodiac sign (sources disagree)
- Whether full moon influences sleep patterns specifically (studies show mixed results)
“The Flower Moon marks the time when spring flowers begin to bloom.” — Traditional Algonquin observation, recorded by Farmers’ Almanac
“The May full moon is a call for transformation from seed to bloom.” — Bustle on the spiritual meaning of the Flower Moon
“Full moons are the brightest and most energetic point of the lunar cycle.” — Bustle
“The Flower Moon is linked symbolically to fertility, growth, and potential.” — ELLE Australia
These perspectives show the moon’s dual nature: astronomical fact and cultural interpretation.
Summary
The May 2025 full moon — the Flower Moon — arrives on schedule, bringing with it a mix of concrete astronomy and open interpretation. For skywatchers, the date and time are fixed: May 12 at 20:02 UTC. For those drawn to spiritual practices, the Flower Moon offers a moment to reflect on growth and release. For the skeptic, it’s simply a bright night worth stepping outside for. The real takeaway? The next blue moon in May 2026 will turn heads, but the May 2025 supermoon (if it qualifies) already makes this spring moon something to mark on your calendar. Observers should keep their eyes on the sky.
earthsky.org, svs.gsfc.nasa.gov, space.com, starwalk.space, bbc.com
For a detailed breakdown of the Flower Moon date and meaning, you can refer to the Auckland Review’s comprehensive guide.
Frequently asked questions
What is a supermoon?
A supermoon occurs when a full moon happens near perigee — the closest point in its orbit to Earth. It appears slightly larger and brighter than average. (Farmers’ Almanac)
How does a full moon affect tides?
The gravitational pull of the moon is strongest during full and new moons, causing higher high tides (spring tides). (NASA Science)
What is the best time to see the full moon?
The full moon is visible all night — it rises around sunset and sets around sunrise. The best viewing is when the moon is high in the sky, typically around midnight. (NASA Science)
Can a full moon cause insomnia?
Some studies suggest a slight increase in time to fall asleep during a full moon, but the effect is small and not consistent across populations. (NASA Science)
What is the difference between a full moon and a new moon?
A full moon occurs when the moon is opposite the sun, showing its fully illuminated side. A new moon occurs when the moon is between Earth and the sun, leaving the side facing Earth dark. (NASA Science)
How often do blue moons occur?
Blue moons — the second full moon in a calendar month — occur about once every 2.5 years. The next blue moon is expected in May 2026. (Farmers’ Almanac)