On Sunday, January 31, 2021 the Moon was in its waning gibbous phase, with 86% of its disk illuminated and an age of 18.4 days since the last new moon. The lit part starts to shrink. The Moon rises a few hours after dusk and is still in the sky when day breaks.
Moon data for this date
| Phase | 🌖 Waning Gibbous |
|---|---|
| Illumination | 86% |
| Moon age | 18.4 days |
| Day of the week | Sunday |
| Last new moon | January 13, 2021 at 02:00 |
| Next full moon | February 27, 2021 at 05:17 (in 26.7 days) |
| Next new moon | February 11, 2021 at 16:05 (in 11.2 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.
← January 30, 2021 February 1, 2021 →
About the waning gibbous
The lit part starts to shrink. The Moon rises a few hours after dusk and is still in the sky when day breaks. The phase name comes from the Moon's position in its 29.53-day cycle: on January 31, 2021 it had completed 62% of the cycle that began with the new moon on January 13, 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 January 31, 2021. For sun times, check sunrise and sunset.