On Wednesday, January 31, 2018 the Moon was in its full moon phase, with 100% of its disk illuminated and an age of 14.5 days since the last new moon. The whole disk is lit: the Moon rises as the Sun sets and stays up all night. It is the brightest and most photographed phase.
Moon data for this date
| Phase | 🌕 Full Moon |
|---|---|
| Illumination | 100% |
| Moon age | 14.5 days |
| Day of the week | Wednesday |
| Last new moon | January 17, 2018 at 00:17 |
| Next full moon | March 1, 2018 at 21:51 (in 29.5 days) |
| Next new moon | February 15, 2018 at 19:05 (in 15.3 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, 2018 February 1, 2018 →
About the full moon
The whole disk is lit: the Moon rises as the Sun sets and stays up all night. It is the brightest and most photographed phase. The phase name comes from the Moon's position in its 29.53-day cycle: on January 31, 2018 it had completed 49% of the cycle that began with the new moon on January 17, 2018.
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, 2018. For sun times, check sunrise and sunset.