- 6 May, 09:45 Vilnius time: first quarter.
- 14 May, 13:42 Vilnius time: full moon, traditionally the Flower Moon.
- 21 May, 21:29 Vilnius time: last quarter.
- 28 May, 14:36 Vilnius time: new moon.
- During May 2033 the Moon passes through all eight phases. One full cycle takes about 29.5 days.
- The next full moon after this month is on 13 June 2033 (June 2033).
Moon phase times, May 2033
The four principal phases are moments, not whole days. Times are given in UTC and in Europe/Vilnius time.
| Date | Phase | Europe/Vilnius | UTC |
|---|---|---|---|
| Fri 6 May | First quarter | 09:45 | 06:45 |
| Sat 14 May | Full moon · Flower Moon | 13:42 | 10:42 |
| Sat 21 May | Last quarter | 21:29 | 18:29 |
| Sat 28 May | New moon | 14:36 | 11:36 |
The sky: May 2033
Planets and sky events this month, as seen in London. The Moon's phases are in the calendar above.
Planets visible (mid-month)
Events
| Tue 3 May | The Moon near Saturn | About 4.4° apart. Look for Saturn next to the Moon. |
| Thu 5 May | Eta Aquariids meteor shower peak | Up to 50 meteors an hour in a perfect sky. The Moon is 44% lit and will hide some fainter meteors. |
| Sun 22 May | The Moon near Jupiter | About 4.6° apart. Look for Jupiter next to the Moon. |
| Wed 25 May | The Moon near Venus | About 1.9° apart, but Venus is not visible that night. |
| Sun 29 May | Venus farthest from the Sun | 46° in the morning sky. Too low at this latitude this time, hard to see. |
| Mon 30 May | The Moon near Saturn | About 4.4° apart. Look for Saturn next to the Moon. |
How to read the moon calendar
Each day shows its date, the share of the Moon’s disc that is lit at noon, and the Moon’s shape that day. When a full moon, new moon or quarter falls on a day, it is named at the bottom of the cell.
Illumination is the part of the disc lit by the Sun. It grows from new moon to full moon (waxing) and shrinks from full moon to new moon (waning). Each day opens its own page with every signal for that date.
Full moon dates 2033
| Date | Time (UTC) | Traditional name | |
|---|---|---|---|
| Sat 15 Jan | 13:07 | Wolf Moon | next |
| Mon 14 Feb | 07:04 | Snow Moon | |
| Wed 16 Mar | 01:37 | Worm Moon | |
| Thu 14 Apr | 19:17 | Pink Moon | |
| Sat 14 May | 10:42 | Flower Moon | |
| Mon 13 Jun | 23:19 | Strawberry Moon | |
| Tue 12 Jul | 09:28 | Buck Moon | |
| Wed 10 Aug | 18:07 | Sturgeon Moon | |
| Fri 9 Sep | 02:20 | Harvest Moon | |
| Sat 8 Oct | 10:58 | Hunter’s Moon | |
| Sun 6 Nov | 20:32 | Beaver Moon | |
| Tue 6 Dec | 07:22 | Cold Moon |
New moon dates 2033
| Date | Time (UTC) | |
|---|---|---|
| Sat 1 Jan | 10:17 | next |
| Sun 30 Jan | 21:59 | |
| Tue 1 Mar | 08:23 | |
| Wed 30 Mar | 17:51 | |
| Fri 29 Apr | 02:46 | |
| Sat 28 May | 11:36 | |
| Mon 27 Jun | 21:07 | |
| Tue 26 Jul | 08:12 | |
| Thu 25 Aug | 21:39 | |
| Fri 23 Sep | 13:39 | |
| Sun 23 Oct | 07:28 | |
| Tue 22 Nov | 01:39 | |
| Wed 21 Dec | 18:46 |
The eight moon phases explained
Four principal phases are exact instants; the four in between are the days that connect them.
Solar and lunar eclipses in 2033
No eclipse data for 2033.
The waning moon is traditionally a time for finishing
Questions people ask
When is the full moon in May 2033?
The full moon is on 14 May 2033. Its traditional name is the Flower Moon. The exact time is in the table on this page.
When is the new moon in May 2033?
The new moon is on 28 May 2033. The Moon can’t be seen that night: it sits between Earth and the Sun with its lit side turned away.
What do the percentages mean?
They show how much of the Moon’s disc is lit at noon. 0% is new moon, 100% is full moon and 50% is a quarter.
Why does another calendar give a different date?
A phase is a moment. When it falls near midnight, the date can differ by one day between time zones. This calendar uses Europe/Vilnius time for the days.
How often is there a full moon?
About every 29.5 days. Some months have two; the second is called a Blue Moon.
- Jean Meeus, Astronomical Algorithms, 2nd ed., Willmann-Bell, 1998, chapters 48 and 49.
- NASA Eclipse Web Site (eclipse dates and visibility).
Numbers update through the day from public sources. The text for each day is written from that day’s data and checked by the editor. Every past day keeps its own page in the archive.