Moon Phases Calendar May 2023

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Interactive moon phases tool

Ready to explore other moon phases? This tool shows the current moon phase and allows you to shift the phases and see how the moon is illuminated at each phase.

Credit: NASA

«May 2023»
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
right
Monday, May 1st, 2023
Waxing Gibbous
2
right
Tuesday, May 2nd, 2023
Waxing Gibbous
3
right
Wednesday, May 3rd, 2023
Waxing Gibbous
4
right
Thursday, May 4th, 2023
Waxing Gibbous
5
Friday, May 5th, 2023
Full Moon
6
right
Saturday, May 6th, 2023
Waning Gibbous
7
right
Sunday, May 7th, 2023
Waning Gibbous
8
right
Monday, May 8th, 2023
Waning Gibbous
9
right
Tuesday, May 9th, 2023
Waning Gibbous
10
right
Wednesday, May 10th, 2023
Waning Gibbous
11
right
Thursday, May 11th, 2023
Waning Gibbous
12
right
Friday, May 12th, 2023
Last Quarter
13
right
Saturday, May 13th, 2023
Last Quarter
14
left
right
Sunday, May 14th, 2023
Waning Cresent
15
left
right
Monday, May 15th, 2023
Waning Cresent
16
left
right
Tuesday, May 16th, 2023
Waning Cresent
17
left
right
Wednesday, May 17th, 2023
Waning Cresent
18
left
right
Thursday, May 18th, 2023
Waning Cresent
19
left
right
Friday, May 19th, 2023
New Moon
20
left
right
Saturday, May 20th, 2023
New Moon
21
left
right
Sunday, May 21st, 2023
Waxing Cresent
22
left
right
Monday, May 22nd, 2023
Waxing Cresent
23
left
right
Tuesday, May 23rd, 2023
Waxing Cresent
24
left
right
Wednesday, May 24th, 2023
Waxing Cresent
25
left
right
Thursday, May 25th, 2023
Waxing Cresent
26
left
right
Friday, May 26th, 2023
Waxing Cresent
27
right
Saturday, May 27th, 2023
First Quarter
28
right
Sunday, May 28th, 2023
Waxing Gibbous
29
right
Monday, May 29th, 2023
Waxing Gibbous
30
right
Tuesday, May 30th, 2023
Waxing Gibbous
31
right
Wednesday, May 31st, 2023
Waxing Gibbous
Moon phase image

Moon phases software screen saver.

If you are interested in the phases of the moon or you like night sky screensavers, download the StarMessage screensaver for Microsoft Windows and Apple MacOS (including Mojave and Catalina).
The screensaver displays the moon in its current moon phase, reminds you about the upcoming full moon dates, shows you the names of the full moon, and does much more.

 

Download It's free

 

Diagram explaining the moon phases

This diagram shows the relative positions of the Sun, the Moon and earth and explains how the different moon phases appear.

The visible part of the moon is the part of the moon's surface that gets hit by the sunlight. The rest of the moon disc is almost invisible.

The moon phases are not caused by the shadow of the earth on to the moon. It is the moon's own shadow at the part of its surface that is not hit by the sunlight.

In other words, the visible "sunny" part is made of the places where there is "day" on the moon and the shadow part is where there is "night".

Moon phases diagram explained. Sun, Earth, Moon

Credit: NASA/JPL-Caltech.