Mark your calendar for the Full Corn Moon 2025 in September.
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 Full Corn Moon of 2025? Learn more about the moon’s nicknames and other facts about it.
Get ready for 2025’s Full Corn Moon in September
The full moon in September 2025 is on Sunday, September 7. The Corn Moon will be the ninth full moon of the year.
The September 7 Corn 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 Full Corn Moon in 2025?
The peak of the Full Corn 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 Corn 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 during the Corn Moon?
Yes, there will be a Total Lunar Eclipse, also called a Blood Moon during the full moon in September. The Corn Moon will also be called the Corn Blood Moon. It will be the second of the lunar eclipses for the year.
Will there a full supermoon during the full moon?
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.
Moon Phases for the Corn Moon
Below are the four core moon phases for the September Corn Moon last year, 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.