LoupeLabMoon Phase in Philadelphia Today
Monday, May 11, 2026 · United States
Last Quarter
35% illuminated
Tonight’s Moon in Philadelphia
Best viewing at 2:00 PM facing W · 6° above horizon
The Moon & Philadelphia
similar lunar visibility to New York
Lunar Culture in Philadelphia
Benjamin Franklin published lunar phase tables in Poor Richard's Almanack from his Philadelphia print shop, making lunar data accessible to colonial Americans. The Franklin Institute, one of the oldest science museums in the country, houses the Fels Planetarium and continues this tradition of public astronomy education. The Rittenhouse Astronomical Society, founded in 1888, hosts public observing sessions.
How the Moon Affects Philadelphia
The Delaware River's tidal range at Philadelphia reaches 1.8 meters, influenced directly by lunar position. This tidal river historically determined cargo loading schedules at the port. Philadelphia's community gardening movement, one of the largest urban gardening networks in the nation, includes practitioners who follow lunar planting calendars passed down through generations.
Best Moon Viewing in Philadelphia
The Schuylkill River Trail near the Art Museum offers clear eastern horizon views for moonrise. Belmont Plateau in Fairmount Park provides an elevated vantage over the city skyline.
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Upcoming Lunar Events
New Moon
Saturday, May 16, 2026
Full MoonFlower Moon
Sunday, May 31, 2026
New Moon
Sunday, June 14, 2026
Full MoonStrawberry Moon
Monday, June 29, 2026
New Moon
Tuesday, July 14, 2026
Full MoonBuck Moon
Wednesday, July 29, 2026
Moonphase Watches & Philadelphia
Set Your Moonphase Watch in Philadelphia
To set your moonphase complication in Philadelphia: wait for the next full moon (Sunday, May 31), then advance the moonphase disc to show a full moon centered in the aperture. Set the time to 2:49 AM local time. Use our drift calculator to check if your complication has drifted since you last set it.
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