September 2026 Moon Phase Calendar
Updated · Daily moon data sampled at 8:00 p.m. Eastern Time (UTC shown where relevant)
The daily phase and illumination below are sampled at 8:00 p.m. Eastern Time. Principal phases are exact astronomical instants. Moonrise is for New York City and may occur on a different local date elsewhere.
July 2026 Moon Phase Calendar — 13-month
Gregorian dates: July 16, 2026 – August 12, 2026.
Switching keeps the reference date, July 16, 2026. Weekday headings follow the fixed calendar, not Gregorian weekdays. Each month has four complete weeks; Sol sits between June and July. The detail tables below keep their stated Gregorian date ranges.
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
 9.3%July 16
|
16.9%July 17
|
25.8%July 18
|
 35.5%July 19
|
45.5%July 20
|
55.4%July 21
First Quarter 7:05 a.m. EDT
|
64.9%July 22
|
 73.7%July 23
|
81.6%July 24
|
88.3%July 25
|
93.7%July 26
|
 97.5%July 27
|
99.6%July 28
|
99.8%July 29
Full Moon 10:35 a.m. EDT
|
|
98.1%July 30
|
 94.4%July 31
|
88.8%August 1
|
81.4%August 2
|
72.5%August 3
|
 62.3%August 4
|
51.2%August 5
Last Quarter 10:21 p.m. EDT
|
|
39.9%August 6
|
 28.9%August 7
|
18.9%August 8
|
10.5%August 9
|
4.3%August 10
|
 0.8%August 11
|
0.1%August 12
New Moon 1:36 p.m. EDT
|
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.
September 2026 Moon Phases — Exact Times
| Phase | Date | Time (ET) | Time (UTC) | 13 month date |
|---|---|---|---|---|
| Last Quarter | 3:51 a.m. EDT | 7:51 a.m. UTC | August 23, 2026 | |
| New Moon | 11:26 p.m. EDT | 3:26 a.m. UTC | September 1, 2026 | |
| First Quarter | 4:43 p.m. EDT | 8:43 p.m. UTC | September 9, 2026 | |
| Full Moon | 12:48 p.m. EDT | 4:48 p.m. UTC | September 17, 2026 |
Daily Moon Phase, Illumination, and Moonrise
“No moonrise” means no rise occurs during that midnight-to-midnight Eastern calendar date at the New York City observer location; it does not mean the moon never rises.