Moon Visibility Tonight in Hiroshima
Hiroshima, Japan
Forecast updated:
Moon visibility depends on phase, cloud cover, and light pollution.
Conditions can change rapidly at night — check close to the time for best accuracy.
Full moons rise near sunset and set near sunrise, providing illumination all night.
For the best experience, combine with golden hour times or best day data.
What Makes Moon Visibility Unique in Hiroshima
Hiroshima sits at 34.4° N in the subtropical zone. It is autumn there now, and the sun currently spends 11.7 hours above the horizon each day.
Hiroshima sits at 34.4° N with Humid subtropical with warm summers and mild winters moderated by the Seto Inland Sea. From Hiroshima's 34.4°N position, the full moon in winter rides high across the southern sky — sometimes reaching 79° altitude — making winter full moons especially prominent. The angle at which the moon crosses the sky here is geometrically fixed by this latitude — a key factor that determines how long the moon stays above the horizon and how much atmosphere its light must penetrate.
sub-tropical humidity levels here give Hiroshima moderate atmospheric clarity, with best visibility occurring on nights following rainfall that has washed out suspended particles.
Cloud cover is the primary visibility limiter in Hiroshima. Rainy months — June, July — bring the highest cloud frequency. For guaranteed sightings, plan within 2 days of full moon in the dry season; the increased brightness penetrates thin cloud veils that would block starlight.
City-specific facts for Hiroshima
- •Latitude 34.4° N: moon arcs through the southern sky
- •Atmospheric band: sub-tropical — moderate clarity, best after rainfall
- •Monsoon influence: low — cloud cover follows temperate patterns
- •Best visibility window: outside June, July
- •Winter full moon max altitude: ~79° — very high — minimal atmospheric extinction
- •Local season right now: autumn (northern hemisphere)
- •Daylight today: 11.7 h — annual range 9.9–14.5 h
- •Solar regime today: normal sunrise/sunset cycle
Moon Phase & Lunar Data for Hiroshima
Moon visibility in Hiroshima depends on three factors: lunar phase (illumination percentage), cloud cover, and light pollution. Full moons rise near sunset and illuminate all night. New moons create the darkest skies — ideal for stargazing and deep-sky photography.
The moon's 29.5-day cycle determines both brightness and rise/set timing. Waxing phases are visible in the evening sky, waning phases appear after midnight. Plan accordingly based on your activity.
Cloud conditions can change rapidly at night. For moon photography or stargazing, check the sky 30 minutes before heading out.
Moon Visibility Guide for Hiroshima in October
Hiroshima's Seto Inland Sea location provides milder conditions than Japan's Pacific coast. Typhoon risk is lower than eastern Japan. Cherry blossoms at the Peace Memorial Park are particularly poignant. Miyajima Island's floating torii gate is weather-dependent for best photography.
October is one of Hiroshima's clearest months, which means excellent moon visibility on most nights. Clear skies allow unobstructed views of the lunar surface, making this ideal for moongazing, astrophotography, and planning moonlit outdoor activities. The warm temperatures (around 25-32°C) make it comfortable to spend extended periods outdoors at night watching the moon.
🌟 Stargazing & Moon Viewing
Clear summer skies in Hiroshima provide excellent conditions for stargazing alongside moonwatching. On nights near the new moon (0-10% illumination), you'll see the most stars. As the moon waxes toward full, its brightness gradually washes out fainter stars, but the moon itself becomes the main attraction. Plan your stargazing for the first few nights after new moon for the best combined experience.
🌙 Moonlit Activities
Full moon nights in Hiroshima during October are perfect for moonlit walks, outdoor dining, and nighttime photography. The bright moonlight illuminates landscapes enough to see without a flashlight on well-lit paths. Beach walks, garden strolls, and viewpoint visits all benefit from the combination of warm temperatures and bright moonlight during this period.
Moon Photography Tips
Moon photography in Hiroshima during October benefits from clear, stable atmospheres. Use a telephoto lens (200mm+) on a sturdy tripod. The "Loony 11" rule works well: at f/11, set your shutter speed to 1/ISO (e.g., ISO 100 → 1/100s). Photograph the moon at moonrise or moonset when it's near the horizon — atmospheric distortion makes it appear larger and more dramatic against the landscape.
Understanding Moon Phases
The moon completes a full cycle of phases every 29.5 days (the synodic month). Each phase affects visibility, brightness, and rise/set times differently. Understanding these phases helps you plan activities in Hiroshima:
🌑 New Moon → First Quarter
The waxing crescent and first quarter moon are visible in the western sky during evening hours. Best for stargazing (less light pollution) while still enjoying a visible moon early in the evening. The thin crescent makes for dramatic photography when combined with earthshine — the faint glow on the dark side of the moon.
🌕 Full Moon → Last Quarter
Full moon rises near sunset and sets near sunrise, providing illumination all night in Hiroshima. Ideal for moonlit walks, nighttime photography, and outdoor events. As the moon wanes, it rises later each night — the last quarter moon rises around midnight, making it visible in the pre-dawn sky for early risers.
📍 Local Weather Insight
The Seto Inland Sea's sheltered position gives Hiroshima a milder typhoon season than Pacific-facing cities, but also creates persistent morning mist that photographers prize.
Local Tips for Moon Viewing in Hiroshima
Miyajima's floating torii gate is best at high tide during golden hour
Cherry blossoms at Peace Memorial Park peak late March
The Seto Inland Sea creates beautiful mist photography in early morning
Best Months for Moon Viewing in Hiroshima
☀️ Clearest Skies
October, November, January — minimal cloud cover gives the most reliable moon visibility. Warm temperatures (25-32°C) make extended nighttime viewing comfortable. Best for moon photography and stargazing in Hiroshima.
☁️ Variable Viewing
June, July — more cloud cover, but clearer air when skies open up. Temperatures around 2-10°C require warmer clothing for nighttime sessions. Cloud breaks can produce dramatic moon-lit cloudscapes unique to this season.
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When Moon Viewing Is Not Possible in Hiroshima
- •New moon phase — the moon is between Earth and the sun, making it invisible from Hiroshima or anywhere else on Earth.
- •Moon below the horizon — the moon orbits Earth and is not always above the horizon at night. Check moonrise/moonset times above.
- •Complete cloud cover — even a full moon is invisible behind thick clouds. Partly cloudy skies may still offer viewing between gaps.
- •Heavy light pollution — city lights wash out fainter moon phases. Crescent moons below 20% illumination are hard to see in urban areas.
Understanding Moon Visibility
Moon visibility in Hiroshima depends on three factors: the moon's phase (illumination percentage), its position relative to the horizon (altitude), and local weather conditions (cloud cover). The moon's illumination is the same worldwide at any given moment — a 75% illuminated moon looks 75% from Tokyo, Paris, or Hiroshima. However, when the moon rises, how high it climbs in the sky, and how long it stays visible varies by location and date. A higher altitude means brighter, sharper viewing. Our moon visibility tracker for Hiroshima combines all these factors into a single daily assessment.
A full moon is 14,000× brighter than the brightest star — but new moons reveal galaxies invisible to the naked eye.
Going stargazing or moon-watching in Hiroshima tonight?
Local Astronomy Profile · Hiroshima
Subtropical latitude (34.4°) — 4.6 h annual day-length swing.
- Highest possible moon altitude
- 84.2°
- Lowest possible moon altitude
- 27.0°
- Lunar altitude range
- 57.2°
- Lunar standstill cycle
- 18.6 years
At major lunar standstill — the absolute maximum the moon ever reaches above the horizon here.
Even at its lowest, the moon climbs above the horizon at this latitude.
Wider range = more dramatic month-to-month differences in moonrise direction and viewing height.
The moon returns to its extreme positions on this cycle — last major standstill: 2024–2025.
Frequently Asked Questions
Is the moon visible tonight in Hiroshima?
Moon visibility in Hiroshima tonight depends on the current phase and cloud cover. The moon phase, illumination percentage, and rise/set times are displayed above. Clear skies and higher illumination (>50%) provide the best visibility.
What moon phase is it in Hiroshima today?
Today's moon phase for Hiroshima is shown above along with the illumination percentage. The moon goes through 8 phases in a roughly 29.5-day cycle: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent.
When is the next full moon in Hiroshima?
The next full moon date is displayed on this page. Full moons are ideal for moonlit landscapes and nighttime photography. They rise near sunset and set near sunrise, providing illumination throughout the night.
Can I photograph the moon from Hiroshima?
Yes! For best results, photograph the moon during its rise or set when it appears largest near the horizon. Use a telephoto lens (200mm+), a tripod, and fast shutter speeds (1/250s or faster). The days around the full moon offer the brightest subjects.
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