Moon Phase in Montreal Today
Monday, August 31, 2026 · Canada
Waning Gibbous
90% illuminated
Tonight’s Moon in Montreal
Best viewing at 1:45 AM facing SE · 50° above horizon
The Moon & Montreal
cold winter air provides sharp atmospheric transparency
Lunar Culture in Montreal
Montreal's astronomical heritage includes the Royal Astronomical Society of Canada's Centre Francophone, one of the most active French-language astronomy communities in the world. Mount Royal, the city's namesake hill, has been a moonrise observation point since the city's founding. The Planetarium Rio Tinto Alcan in the Space for Life complex features advanced lunar programming.
How the Moon Affects Montreal
The St. Lawrence River at Montreal experiences tidal influence from the Atlantic, with small but measurable lunar tides. Quebec's agricultural traditions include lunar planting calendars documented since the earliest French colonial period. Ice fishing on the St. Lawrence and Richelieu Rivers follows solunar activity patterns during winter months.
Best Moon Viewing in Montreal
The summit of Mont Royal (233m) offers a clear eastern horizon and is the most popular moonrise viewing spot in the city. In winter, cold dry air creates exceptional atmospheric transparency for lunar detail.
Upcoming Lunar Events
New Moon
Thursday, September 10, 2026
Full MoonHarvest Moon
Saturday, September 26, 2026
New Moon
Saturday, October 10, 2026
Full MoonHunter's Moon
Monday, October 26, 2026
New Moon
Sunday, November 8, 2026
Full MoonBeaver Moon
Tuesday, November 24, 2026
Moonphase Watches & Montreal
Set Your Moonphase Watch in Montreal
To set your moonphase complication in Montreal: wait for the next full moon (Saturday, September 26), then advance the moonphase disc to show a full moon centered in the aperture. Set the time to 8:20 PM local time. Use our drift calculator to check if your complication has drifted since you last set it.
Open Drift Calculator