Moon Phase Calendar 2026 & 2027

Updated October 2, 2026 · Daily moon data sampled at 8:00 p.m. Eastern Time (UTC shown where relevant)

Open 13cal Moon — the offline moon phase app

Tonight, October 2, 2026, the moon is a Last Quarter at 56.5% illumination. The next new moon is October 10, 2026 and the next full moon is October 26, 2026 (Hunter's Moon). This is a daily moon phase calendar with principal phases and exact event times, each paired with its 13 month calendar equivalent.

September 2026 Moon Phase Calendar — Gregorian

Gregorian dates: September 1, 2026 – September 30, 2026.

Switching keeps the reference date, September 1, 2026. Weekday headings follow the Gregorian calendar. 13-month dates appear below each day. The detail tables below keep their stated Gregorian date ranges.

Moon phases for September 2026, Eastern Time. 13 month calendar date shown in the center of each day.

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
		175.3%Aug 20	265%Aug 21	353.9%Aug 22	442.4%Aug 23 Last Quarter 3:51 a.m. EDT	531.3%Aug 24
621.1%Aug 25	712.4%Aug 26	85.8%Aug 27	91.7%Aug 28	100%Sep 1 New Moon 11:26 p.m. EDT	110.9%Sep 2	124.1%Sep 3
139.3%Sep 4	1416%Sep 5	1524%Sep 6	1632.7%Sep 7	1742%Sep 8	1851.4%Sep 9 First Quarter 4:43 p.m. EDT	1960.8%Sep 10
2069.9%Sep 11	2178.3%Sep 12	2285.8%Sep 13	2392.1%Sep 14	2496.7%Sep 15	2599.4%Sep 16	2699.8%Sep 17 Full Moon 12:48 p.m. EDT
2797.8%Sep 18	2893.4%Sep 19	2986.6%Sep 20	3077.9%Sep 21

Daily phase names group the cycle into eight broad phase sectors, using progress between exact astronomical events. They describe the 8 p.m. Eastern sample, not the instant of a new moon, quarter moon, or full moon. The tables list those exact principal-phase instants separately.

October 2026 moon phases — dates and times

See the full October 2026 moon calendar for New York City moonrise details and daily illumination.

Tonight's Moon — October 2, 2026

Phase

Last Quarter

Illumination

56.5%

Moon age

21.9 days since new moon

Next exact principal phase

Last Quarter on October 3, 2026 (in 1 days)

13 month date

September 23, 2026

Want this for any date? Check the moon phase today page, or use the date lookup below.

Upcoming New Moons and Full Moons

The waxing window — new moon to first quarter — runs October 10 through October 18, 2026, traditionally a time for starting and building. The waning window — full moon to last quarter — runs October 26 through November 1, 2026, traditionally a time for finishing and releasing. Our free 28-day lunar reset guide is built around these two windows.

Every Full Moon in 2026 and 2027

Full moon dates 2026

Full moon dates 2027

Eclipse classifications are from NASA GSFC. On this site, “supermoon” means a full moon with a computed geocentric distance of 360,000 km or less.

Every New Moon in 2026 and 2027

New moon dates 2026

New moon dates 2027

Moon Phase Calendar by Month

The Eight Phases of the Moon

Every lunar cycle moves through eight named phases. Four are major: new moon, first quarter, full moon, and last quarter. Between them sit four intermediate phases: waxing crescent, waxing gibbous, waning gibbous, and waning crescent. "Waxing" means the lit portion is growing; "waning" means it is shrinking. "Crescent" describes a sliver less than half-lit; "gibbous" describes a shape more than half-lit but not yet full.

The whole sequence repeats every 29.530588 days on average — what astronomers call the synodic month. This is the cycle that almost every lunar tradition, from agricultural folk calendars to fasting protocols, has followed for thousands of years.

Why a 28-Day Month Almost Tracks the Moon

The 13-month fixed calendar uses months of exactly 28 days — a clean four-week block. The actual moon cycle is closer to 29.5 days, so the two don't lock perfectly: the moon drifts about 1.5 days later inside each fixed month. But the structural similarity is striking. A 28-day month gives you a stable, repeatable container that roughly tracks the moon, without trying to chase it the way a true lunar calendar (like the Islamic Hijri calendar) does.

If you want the rational, perpetual structure of a 13-month year and a tighter relationship with actual moon phases, you can use this tracker as the live overlay: the fixed calendar gives you the grid, and the moon phase data gives you the rhythm.

For the full answer, read Is the 13 month calendar lunar?

Moon Phase Calendar FAQ

What is the moon phase tonight?

Tonight, October 2, 2026, the moon is in the Last Quarter sector at 56.5% illumination. The next exact principal-phase instant is Last Quarter on October 3, 2026.

When is the next full moon?

The next full moon is on October 26, 2026 at 12:11 a.m. EDT (October 26, 2026, 4:11 a.m. UTC). It is traditionally called the Hunter's Moon.

When is the next new moon?

The next new moon is on October 10, 2026 at 11:50 a.m. EDT (October 10, 2026, 3:50 p.m. UTC).

How many full moons are there in 2026?

There are 13 full moons in 2026.

How long is a lunar cycle?

One synodic month — new moon to new moon — averages 29 days, 12 hours, 44 minutes (29.53 days). Individual cycles vary by several hours because the moon's orbit is elliptical.

Is the 13 month calendar a lunar calendar?

Not strictly. Its months are a fixed 28 days, while the real lunar cycle is 29.53 days, so phases drift about a day and a half later each fixed month. It's better described as a solar calendar with moon-length months. Full explanation here.

Are the times on this page in my time zone?

Times are given in US Eastern Time with UTC in parentheses. A full moon that falls late in the evening Eastern may land on the following calendar date in Europe or Asia.