Feast Your Eyes on the Corn Moon!
Are you feeling hungry? The full Corn Moon rises on the evening of September 7, 2025. Why do we call it the Corn Moon? Learn facts about this beautiful late summer Moon, as well as the best time to view it.
When to See the Full Moon in September 2025
This year, September’s full Corn Moon will peak illumination at 2:09 P.M. Eastern Time on Sunday, September 7. It will be below the horizon at this time, so be sure to watch for it after sunset.
Why Do We Call it the Corn Moon?
This time of year—late summer into early fall—corresponds with the time of harvesting corn in much of the northern United States. For this reason, a number of Native American peoples traditionally used some variation of the name “Corn Moon” to refer to the Moon of either August or September. Examples include Corn Maker Moon (Western Abenaki) and Corn Harvest Moon (Dakota).
Alternative September Moon Names
Other Moon names for this month highlight how September is the transitional period between summer and fall:
- Autumn Moon (Cree)
- Falling Leaves Moon (Ojibwe)
- Leaves Turning Moon (Anishinaabe)
- Moon of Brown Leaves (Lakota)
- Yellow Leaf Moon (Assiniboine)
The behavior of animals is also a common theme, with Child Moon (Tlingit) referring to the time when young animals are weaned, and Mating Moon and Rutting Moon (both Cree) describing the time of year when certain animals, like moose, elk, and deer, are looking to mate.
→ Read more about full Moon names and their traditional meanings here.
Moon Phases for September 2025
Here are the Moon phase dates and times (EDT) for the month of September. Check our Moon Phase Calendar for dates and times in your city.
 | Full Moon: September 7, 2:09 P.M. EDT |
 | Last Quarter: September 14, 6:33 A.M. EDT |
 | New Moon: September 21, 3:54 P.M. EDT |
 | First Quarter: September 29, 7:54 P.M. EDT |
When is the next full Moon? Consult our Full Moon Calendar to find out.
September Full Moon Video
Why does the Moon ride high or low in the sky? Find out the answer to this question—and learn more about September’s full Moon—in this entertaining video.
Best Days in September 2025
Below are the best days for activities, based on the Moon’s sign and phase in September.
| Activity | Best Days |
| Harvesting aboveground crops | 2, 3, 29, 30 |
| Harvesting belowground crops | 11, 12 |
| Setting Eggs | 3-5, 13, 14, 30 |
| Fishing | 1-7, 21-30 |
→ See Best Days for more activities.
Moon Facts & Folklore
- Usually, the Moon rises about 50 minutes later each day; but around the time of the autumnal equinox, it rises only around 30 minutes later in the United States—even less in Canada.
- Frost occurring in the dark of the moon kills fruit buds and blossoms, but frost in the light of the moon will not.
Are you a full Moon lover? Share your thoughts below!
More Like This
The Full Moon rises in the part of the sky approximately opposite from where the Sun sets (since the Sun is illuminating the full face of the Moon at this phase). However, the moonrise does not usually occur precisely at the time of sunset. Check Almanac.com for the exact time for your area:
http://www.almanac.com/astronomy/
Also, the exact moment when the Moon is completely full may not occur at moonrise (and could be off a few hours).
However, the "full" Moon will rise near sunset, and whether exactly full or not, it is indeed a lovely sight.
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