Moon phases in 2033: full calendar
All 50 primary Moon phases in 2033, with the exact date and time in Universal Time (UT). The first full moon is 15 January at 13:07 UT; the first new moon is 1 January at 10:17 UT.
Time-zone note. These are geocentric phase instants in UT, as supplied by the U.S. Naval Observatory. Your local clock — and occasionally your local calendar date — may differ after conversion.
2033 Moon phase calendar by month
2033 contains 50 primary lunar phases: 12 full moons and 13 new moons. No calendar month has two full moons. January and March have two new moons.
| Month | Primary phases in Universal Time |
|---|---|
| January |
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| February |
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| March |
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| April |
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| May |
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| June |
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| July |
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| August |
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| September |
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| October |
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| November |
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| December |
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Full moon dates in 2033
No month contains two full moons.
New moon dates in 2033
January and March have two new moons.
What stands out in 2033
- The year opens with a new moon on Saturday, 1 January at 10:17 UT and closes with a first quarter on Thursday, 29 December at 00:20 UT.
- The shortest interval between consecutive primary phases is about 6.6 days, from the last quarter on 22 April at 11:42 UT to the new moon on 29 April at 02:46 UT.
- The longest interval is about 8.2 days, from the last quarter on 13 November at 20:09 UT to the new moon on 22 November at 01:39 UT.
- No month contains two full moons. January and March have two new moons.
Source and method
The phase dates are a checked-in snapshot of the official USNO annual Moon phases API result for 2033, retrieved 2026-08-14, API version 4.0.1. USNO describes these as computed astronomical data for public information and general use. SkyClock does not call the API during a page build or visit.
USNO asks for appropriate credit when its public information is copied or distributed; see its privacy and distribution notice. These computed times are useful for planning, not navigation, legal certification or a claim about local Moon visibility.
FAQ
When is the first full moon of 2033?
The first full moon of 2033 is Saturday, 15 January 2033 at 13:07 UT. The final full moon is Tuesday, 6 December 2033 at 07:22 UT. Both times are Universal Time (UT).
How many full moons are there in 2033?
There are 12 full moons in 2033. No month contains two full moons.
How many new moons are there in 2033?
There are 13 new moons in 2033. January and March have two new moons.
Why can a Moon phase date differ in my time zone?
Every phase on this page is listed in Universal Time. Converting the instant to a local time zone can move it to the previous or next calendar date, but it is still the same astronomical instant.