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!
Comments
Yes! I love seeing the full Harvest moon! It is the end of the planting and growing season and the beginning of the cold weather! Our garden is over, and we take out the old corn stalks and get the soil prepared for next spring. The wood chips keep moisture in the ground and turns into compost,
In addition to the Harvest Moon, at this time of year I am also interested in Michaelmas Day (9/29) since I first saw it mentioned in an Agatha Christie novel just a few years ago. She talked about “Michaelmas Daisies” in her book. I had never heard of this so of course I looked it up in the Old Farmer’s Almanac and got my answer!
It is September 29, '23 and the full moon is tonight. I have been, for several years now, planting and transplanting by the moon phases and I have much greater success with it now. My gramps taught me to how read and comprehend the Frmers Almonac when in my early 20s. I wheind my children, lost weight and cut our hair with its info among so so many other tasks and behaviors. I'm so very glad we have this tool and that I learned from Gramps how to read and use it. He was a farmer, my dad a rancher who also used it for certain things to do with animals.
I was born on a full moon on 3/26 at 3:19 pm during the worst blizzard in 25 years. Many years later my daughter was born on 8/7 on a full moon at 9:13 pm during an absolutely wild, intense New England thunderstorm. Both of our births were a stones throw from the ocean. Love love love the full moon and the ocean
I love that you also told us what the native tribes called the moon I love hearing about our native American culture