The September 2025 Full Moon will be on Sunday, September 7, 2025 at 2:09 PM EDT. It will be the ninth full moon of 2025.
A full moon occurs when the Earth is between the Sun and the Moon, so the moon looks completely illuminated. It happens about once a month or 29.53 days on average, also called a synodic month.
Ready to dive a little deeper into the September Full Moon of 2025? Learn more about the moon’s nicknames and other facts about it.
Get ready for September 2025’s Full Corn Moon
The full moon in September 2025 is on Sunday, September 7. The September full moon will be the ninth full moon of the year.
The September 7 full moon will be the last full moon of Summer as the last full moon after the Summer Solstice. Depending on the year, the September Full Moon is either the at the end of Summer or at the beginning of Autumn.
When is the September Full Moon in 2025?
The peak of the Full September Moon will be at 2:09 p.m. EDT on September 7th. The moon will look fairly full the day before and after. The September 7 Full Moon will be the full moon in Pisces.
Names for the September Full Moon
In 2025, the name of the September Full Moon will be the Full Corn Moon. The nickname is inspired by nature and agriculture as well as the timing of the Equinox.
Typically the Harvest Moon occurs in September but about every four years, the Harvest Moon nickname is given the October Full Moon. In those years, such as 2025, the September Full Moon is called by it’s alternate name, the Corn Moon.
Will there be a Lunar Eclipse in September?
Yes, there will be a Total Lunar Eclipse, also called a Blood Moon during the September Full Moon. It will be the second of the lunar eclipses for the year.
Will there a full supermoon in September?
No, there will not be a full supermoon in September. The 2025 super full moons will be in October, November, and December.
A full supermoon is a full moon that nearly coincides with the closest point at which the Moon comes to Earth in its orbit, called perigee. The moon will have a larger-than-usual appearance. There isn’t an official definition of the exact distance the moon needs to be to be called a supermoon. It’s approximately 360,000 kilometers or closer, depending on the definition.
Will September be a blue moon?
No, there will not be a blue moon in September, nor any other month in 2025. There was a seasonal blue moon in 2024 and there will be a blue moon in 2026 with a second full moon in May.
There are two definitions of blue moons. The most common, and the one you likely know, is when two full moons occur in the same month. The second full moon is typically called a blue moon.
The second definition relates to having an extra full moon on the calendar during a season. When a season has four full moons, the third full moon is also called a blue moon or a seasonal blue moon.
Moon Phases for the September Full Moon
Below are the four core moon phases for the September Full Moon, including the new moon, first quarter, full moon, and last quarter. The lunar cycle for the Full Moon began in August and ended in September.
| Moon Phase | Date & Time | Season |
|---|---|---|
| New Moon | Sat, August 23, 2:06 a.m. | Summer |
| First Quarter | Sun, August 31, 2:25 a.m. | Summer |
| Full Moon | Sun, September 7, 2:09 p.m. | Summer |
| Last Quarter | Sun, September 14, 6:33 a.m. | Summer |
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Sources
The dates and times provided by NASA are set to United States (USA) Eastern Time for states including New York and Florida, adjusted for Daylight Saving Time for part of the year. Since you may be in a different time zone, the exact dates may shift for your calendar.