Moon phase on July 19, 2038

Waning Gibbous, 94%
🌖 Waning Gibbous
Monday, July 19, 2038 · at noon (Brasília)
Illumination: 94% Age: 17.1 days Cycle: 58%

On Monday, July 19, 2038 the Moon will be in its waning gibbous phase, with 94% of its disk illuminated and an age of 17.1 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
Illumination94%
Moon age17.1 days
Day of the weekMonday
Last new moonJuly 2, 2038 at 10:32
Next full moonAugust 14, 2038 at 19:56 (in 26.3 days)
Next new moonJuly 31, 2038 at 21:40 (in 12.4 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.

← July 18, 2038 July 20, 2038 →

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 July 19, 2038 it had completed 58% of the cycle that began with the new moon on July 2, 2038.

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 July 19, 2038. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on July 19, 2038?

On July 19, 2038 the Moon will be in its waning gibbous phase, with 94% 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: 17.1 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after July 19, 2038 falls on August 14, 2038 at 19:56 Brasília time.

When is the next new moon after that date?

The next new moon after July 19, 2038 falls on July 31, 2038 at 21:40 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.