Moon Phases Visible from Lissabon

From Lissabon at latitude 38.7°, the moon's appearance follows the same 29.53-day synodic cycle visible worldwide — all 8 phases from New Moon through Full Moon and back. However, Lissabon's mid-latitude latitude affects the moon's maximum altitude in the sky. The moon can reach up to 79.9° altitude when crossing the meridian near summer solstice, and only 22.7° near winter solstice. This seasonal variation determines how high the moon appears above Lissabon's horizon and affects lunar photography planning.

Lissabon liegt nahe der südlichen Grenze des Pfads der totalen Sonnenfinsternis vom 12. August 2026 — während das Stadtzentrum eine tiefe partielle Finsternis (~95%) erlebt, kann die Totalität innerhalb von 30 Minuten Fahrt nach Norden in Städten wie Caldas da Rainha und Rio Maior erreicht werden. Die sieben Hügel der Stadt, verewigt in ihren ikonischen Straßenbahnlinien, werden die sichelförmige Sonne verzerrte Schatten über die Tejo-Mündung werfen sehen.

Moonrise & Moonset Times at Lissabon

The moon rises approximately 50 minutes later each day as seen from Lissabon. This daily delay occurs because the moon orbits Earth eastward at about 1 km/s, moving roughly 13° per day against the background stars. At Lissabon's latitude (38.7°), the moon's rise and set positions along the horizon shift seasonally — rising further north in summer and further south in winter. MoonSync calculates exact moonrise and moonset times for Lissabon using real-time ephemeris data.

Auf 38,7°N an Europas westlichster kontinentaler Kante genießt Lissabon über 2.800 Sonnenstunden jährlich — einer der höchsten Werte Europas. Die westlich ausgerichtete Atlantikküste der Stadt bedeutet, dass Sonnenuntergänge über dem Ozean ein tägliches Ritual sind, mit dem Cabo da Roca (dem westlichsten Punkt des europäischen Festlands) nur 40 km entfernt für ungehinderte Sonnenhorizont-Ansichten.

Moon Illumination & Lissabon's Dark-Sky Planning

For stargazing and astrophotography in Lissabon, moon illumination percentage is the critical number. A Full Moon (100% illuminated) washes out all but the brightest stars and makes deep-sky observation nearly impossible. The 7 days around New Moon (0-15% illumination) provide the best dark-sky window. At 38.7° latitude, combine moon phase with the Twilight Calculator to find nights when both astronomical darkness and minimal moonlight coincide — these 'astrophotographer's golden hours' occur roughly once per month at Lissabon.

Lunar Data Accuracy for Lissabon

MoonSync computes moon phase, illumination, moonrise/moonset times, and lunar age for Lissabon using real-time ephemeris data. Phase illumination is accurate to ±1%. Moonrise and moonset times are calculated from Lissabon's precise coordinates (38.7°, -9.1°) and corrected for atmospheric refraction. The Keplerian orbital model used achieves timing accuracy of approximately ±30 minutes over a synodic month. For sub-minute lunar event timing, consult the USNO Phases of the Moon data service.