On Friday, August 28, 2026 the Moon was in its waning gibbous phase, with 98% of its disk illuminated and an age of 15.9 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 | 98% |
| Moon age | 15.9 days |
| Day of the week | Friday |
| Last new moon | August 12, 2026 at 14:36 |
| Next full moon | September 26, 2026 at 13:49 (in 29.1 days) |
| Next new moon | September 11, 2026 at 00:27 (in 13.5 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 27, 2026 August 29, 2026 →
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 August 28, 2026 it had completed 54% of the cycle that began with the new moon on August 12, 2026.
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 28, 2026. For sun times, check sunrise and sunset.