The September 2026 Full Moon is on Saturday, September 26. It will be the tenth full moon of 2026.
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 2026? Learn more about the moon’s nicknames and other facts about it.
Get ready for 2026’s September full moon
The September Full Moon is on Saturday, September 26th. It will be the tenth full moon of the year.
The September 26 Full Moon is the first full moon of Autumn as the first to occur after the Autumnal Equinox. Depending on the year, the September Full Moon is either the last Summer Full Moon or the first Autumn Full Moon
When is the full moon in September for 2026?
The peak of the September full moon is 12:49 PM EDT on September 26th. The moon will look fairly full the day before and after. The September 26 Full Moon will be the full moon in Aries.
Related: Learn more about the September Full Moon in 2027.
Names for the September Full Moon
In 2026, the September Full Moon will be called the Full Harvest Moon. The nickname is inspired by nature and agriculture as well as the timing of the Fall Equinox. The full moon closest to the Autumnal Equinox is called the Harvest Moon.
Will there be a lunar eclipse in September during the full moon?
No, there will not be a lunar eclipse during the September full moon in 2026. The March full moon and August full moon will each have a Total Lunar Eclipse, also called a Blood Moon.
Will there a full supermoon in September?
No, there will not be full supermoon in September. The 2026 super full moons will be during the January Full Moon, November Full Moon and December Full Moon.
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 in September 2026
Below are the four core moon phases that will occur in September, including the new moon, first quarter, full moon, and last quarter. The lunar cycle for the full moon will start in September and end in October.
| Phase | Date & Time | Season |
|---|---|---|
| September Last Quarter | Fri, September 4, 3:51 a.m. EDT | Summer |
| September New Moon 2026 | Thu, September 10, 11:27 p.m. EDT | Summer |
| September First Quarter | Fri, September 18, 4:44 p.m. EDT | Summer |
| September Full Moon 2026 | Sat, September 26, 12:49 p.m. EDT | Autumn |
Full Moons this Year in 2026
The September full moon is one of the thirteen full moons this year. The others are
- Full Moon in January 2026 was on the Jan 3rd
- Full Moon in February 2026 was on Feb 1st
- Full Moon in March 2026 was on March 3rd
- Full Moon in April 2026 is in on April 1st
- Full Moon in May 2026 is in on May 1st
- Blue Moon in May 2026 is at the end of May
- Full Moon in June 2026 is on June 29th
- Full Moon in July 2026 is on July 29th
- Full Moon in August 2026 is on August 28th
- Full Moon in October 2026 is on October 26th
- Full Moon in November 2026 is on November 24th
- Full Moon in December 2026 is on December 23rd
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.