Moon Phase in Boston Today
Sunday, October 18, 2026 · United States
First Quarter
51% illuminated
Tonight’s Moon in Boston
Best viewing at 7:00 PM facing S · 25° above horizon
The Moon & Boston
northern latitude means dramatic seasonal variation in moon altitude
Lunar Culture in Boston
Boston's Harvard College Observatory, established in 1839, was among the first to systematically photograph the moon. MIT's Haystack Observatory continues lunar research today. The city's maritime heritage is deeply tied to lunar cycles: colonial-era shipping relied on tide tables, and Boston Harbor's tidal range of 2.9 meters is one of the largest on the East Coast.
How the Moon Affects Boston
Boston Harbor's significant tidal range governs ship passage, recreational boating, and coastal erosion patterns throughout the year. The New England fishing industry, centered on Gloucester and New Bedford, uses lunar-based solunar tables for commercial and sport fishing. Lobster fishermen in particular track moon phases for optimal trapping conditions.
Best Moon Viewing in Boston
Castle Island in South Boston offers a clear eastern horizon over the harbor. The esplanade along the Charles River provides a scenic moonrise view framed by the Cambridge skyline.
Upcoming Lunar Events
Full MoonHunter's Moon
Monday, October 26, 2026
New Moon
Sunday, November 8, 2026
Full MoonBeaver Moon
Tuesday, November 24, 2026
New Moon
Tuesday, December 8, 2026
Full MoonCold Moon
Wednesday, December 23, 2026
New Moon
Thursday, January 7, 2027
Moonphase Watches & Boston
Set Your Moonphase Watch in Boston
To set your moonphase complication in Boston: wait for the next full moon (Monday, October 26), then advance the moonphase disc to show a full moon centered in the aperture. Set the time to 2:23 PM local time. Use our drift calculator to check if your complication has drifted since you last set it.
Open Drift Calculator