LoupeLabMoon Phase in Jakarta Today
Monday, August 31, 2026 · Indonesia
Waning Gibbous
90% illuminated
Tonight’s Moon in Jakarta
Best viewing at 2:30 AM facing N · 71° above horizon
The Moon & Jakarta
equatorial Southern Hemisphere with near-overhead moon transits
Lunar Culture in Jakarta
Indonesia's Islamic majority observes Ramadan timing by crescent moon sighting, making lunar observation a national practice. Javanese culture integrates a complex calendrical system combining Islamic lunar months with the pre-Islamic Javanese calendar. The Boscha Observatory in Bandung (2 hours from Jakarta) is Indonesia's premier astronomical facility. Jakarta's planetarium in Taman Ismail Marzuki promotes astronomical education.
How the Moon Affects Jakarta
The Java Sea's tidal patterns affect Jakarta's coastal flooding vulnerability, with spring tides during new and full moons exacerbating the city's sinking land problem. Indonesian fishing, the world's second-largest capture fishery, follows lunar tidal tables across the archipelago. Traditional Javanese agriculture incorporates the 'pranata mangsa' season system that includes lunar observations.
Best Moon Viewing in Jakarta
Monas (National Monument, 132m) provides the most accessible elevated view in central Jakarta. For clearer skies, the Puncak highland pass (1,000m+) south of the city offers dramatic moonrise over volcanic terrain. Dry season (May-September) is optimal.
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Upcoming Lunar Events
New Moon
Friday, September 11, 2026
Full MoonHarvest Moon
Sunday, September 27, 2026
New Moon
Saturday, October 10, 2026
Full MoonHunter's Moon
Monday, October 26, 2026
New Moon
Monday, November 9, 2026
Full MoonBeaver Moon
Tuesday, November 24, 2026
Moonphase Watches & Jakarta
Set Your Moonphase Watch in Jakarta
To set your moonphase complication in Jakarta: wait for the next full moon (Sunday, September 27), 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.
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