On Tuesday, August 31, 2021 the Moon was in its last quarter phase, with 40% of its disk illuminated and an age of 23.0 days since the last new moon. Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning.
Moon data for this date
| Phase | 🌗 Last Quarter |
|---|---|
| Illumination | 40% |
| Moon age | 23.0 days |
| Day of the week | Tuesday |
| Last new moon | August 8, 2021 at 10:50 |
| Next full moon | September 20, 2021 at 20:55 (in 20.4 days) |
| Next new moon | September 6, 2021 at 21:52 (in 6.4 days) |
The Moon on the surrounding days
Compare the phase and illumination over the three days before and after. Click a day to open its page.
← August 30, 2021 September 1, 2021 →
About the last quarter
Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning. The phase name comes from the Moon's position in its 29.53-day cycle: on August 31, 2021 it had completed 78% of the cycle that began with the new moon on August 8, 2021.
Looking for another date, such as a birthday? Use the Moon phase on the day I was born tool, see the Moon phase today page with the lunar calendar, or find the day of the week of August 31, 2021. For sun times, check sunrise and sunset.