Moon phase on August 13, 2022

Waning Gibbous, 99%
🌖 Waning Gibbous
Saturday, August 13, 2022 · at noon (Brasília)
Illumination: 99% Age: 15.9 days Cycle: 54%

On Saturday, August 13, 2022 the Moon was in its waning gibbous phase, with 99% 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

Moon at noon Brasília time (UTC-3)
Phase🌖 Waning Gibbous
Illumination99%
Moon age15.9 days
Day of the weekSaturday
Last new moonJuly 28, 2022 at 14:54
Next full moonSeptember 10, 2022 at 06:59 (in 27.8 days)
Next new moonAugust 27, 2022 at 05:17 (in 13.7 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 12, 2022 August 14, 2022 →

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 13, 2022 it had completed 54% of the cycle that began with the new moon on July 28, 2022.

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 13, 2022. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on August 13, 2022?

On August 13, 2022 the Moon was in its waning gibbous phase, with 99% of the disk lit (calculated at noon Brasília time).

How old is the Moon on that date?

The age is the time since the last new moon: 15.9 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after August 13, 2022 falls on September 10, 2022 at 06:59 Brasília time.

When is the next new moon after that date?

The next new moon after August 13, 2022 falls on August 27, 2022 at 05:17 Brasília time.

How is the Moon phase calculated?

With Jean Meeus's astronomical formulas for the instants of new, quarter and full moon. The age comes from the time since the last new moon and the illumination is (1 − cos(2π × cycle fraction)) / 2.

Is the phase the same everywhere in the world?

Yes, the phase and the illuminated percentage are the same across the planet at any given instant. Only the orientation changes: in the southern hemisphere a waxing Moon is lit on the left, in the northern one on the right.