Moon in Rio de Janeiro Today — Waning Gibbous

Current lunar phase and 30-day moon calendar for Rio de Janeiro, Brazil. Updated hourly.

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Rio de Janeiro, Brazil2026年5月3日

Waning Gibbous

96% illuminated · 16.7 days into cycle

Lunar Data for Rio de Janeiro — Today

Moonrise18:35
Moonset7:59
Phase🌖 Waning Gibbous
Illumination96%
Moon Age16.7 days into lunar cycle
Distance404,948 km
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Next Full Moon

2026年5月30日

Flower Moon

in 28 days

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Next New Moon

2026年5月15日

in 13 days

Moon in Rio de Janeiro — Did You Know?

  • ·Rio de Janeiro's iconic Carnival, the world's largest, is set by the lunar calendar — it begins on the Friday before Ash Wednesday, itself determined by Easter's lunar date, meaning the Sambódromo parades, the blocos street parties, and the famous moonlit revelry on Copacabana shift by weeks from year to year.
  • ·Few cities on Earth offer a moon-viewing stage as spectacular as Rio's: the full moon rises over the Atlantic between the Pão de Açúcar (Sugarloaf) and the Corcovado ridge, its reflection crossing Guanabara Bay while seen from the Arpoador rock between Ipanema and Copacabana beaches — a geography-specific spectacle repeated monthly.
  • ·At latitude 22.9° S, Rio is just inside the tropics; in winter the full moon can reach up to 90° altitude, often passing almost directly overhead, and as a Southern Hemisphere city, the waxing crescent opens to the right — giving the moon a 'cupped bowl' appearance that is characteristic of the tropics.

30-Day Moon Phase Calendar — Rio de Janeiro

DatePhaseIllumination
Today🌖Waning Gibbous96%
5月4日🌖Waning Gibbous90%
5月5日🌖Waning Gibbous83%
5月6日🌖Waning Gibbous75%
5月7日🌗Last Quarter65%
5月8日🌗Last Quarter55%
5月9日🌗Last Quarter44%
5月10日🌗Last Quarter34%
5月11日🌘Waning Crescent24%
5月12日🌘Waning Crescent16%
5月13日🌘Waning Crescent9%
5月14日🌑New Moon4%
5月15日🌑New Moon1%
5月16日🌑New Moon0%
5月17日🌑New Moon2%
5月18日🌒Waxing Crescent5%
5月19日🌒Waxing Crescent11%
5月20日🌒Waxing Crescent19%
5月21日🌒Waxing Crescent27%
5月22日🌓First Quarter37%
5月23日🌓First Quarter48%
5月24日🌓First Quarter58%
5月25日🌓First Quarter69%
5月26日🌔Waxing Gibbous78%
5月27日🌔Waxing Gibbous86%
5月28日🌔Waxing Gibbous93%
5月29日🌕Full Moon97%
5月30日🌕Full Moon100%
5月31日🌕Full Moon100%
6月1日🌕Full Moon98%

よくある質問

Tonight the moon in Rio de Janeiro is in the Waning Gibbous phase. It is 96% illuminated and 16.7 days into the current lunar cycle. Moon phases are the same worldwide — only the exact local clock time of moonrise and moonset differs by location.
The next full moon occurs on 2026年5月30日, which is 28 days from today. During a full moon the Moon is 100% illuminated as seen from Earth.
The next new moon occurs on 2026年5月15日, in 13 days. The new moon marks the start of a fresh 29.5-day lunar cycle and is not visible in the night sky.
A lunar (synodic) cycle lasts approximately 29 days, 12 hours, 44 minutes — or 29.53 days. It runs from one new moon to the next, passing through 8 distinct phases: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent.
No — the moon phase (the fraction of the Moon illuminated) is the same everywhere on Earth at any given moment. However, moonrise and moonset times, as well as the moon's altitude in the sky, vary by location. The moon also appears upside-down in the Southern Hemisphere compared to the Northern Hemisphere.
The moon rises at approximately 18:35 local time in Rio de Janeiro tonight. Moonrise shifts about 50 minutes later each night as the Moon moves eastward along its orbit, completing a full cycle roughly every 29.5 days.
The next full moon on 2026年5月30日 is known as the Flower Moon. These traditional names — originating with Native American tribes and later adopted in the Farmer's Almanac — each reflect a seasonal event or natural phenomenon of that month visible from the Northern Hemisphere.
No — the Moon is currently at approximately 404,948 km, a typical orbital distance. A supermoon occurs when a full moon coincides with the Moon being within roughly 360,000 km of Earth (near perigee). The Moon's distance varies between ~356,500 km (perigee) and ~406,700 km (apogee) over each ~27.3-day anomalistic month.
From Rio de Janeiro at 22.9°S latitude, the full moon's maximum altitude above the horizon varies by season. In the local hemisphere's winter — when the full moon is opposite a low winter sun — it can reach roughly 90° above the horizon. In summer it arcs lower, around 44°. This seasonal variation is the same reason the sun is high in summer and low in winter.
The Moon's phase is identical everywhere on Earth simultaneously. However, its orientation in the sky differs by hemisphere: in the Northern Hemisphere the waxing crescent curves to the left; in the Southern Hemisphere it curves to the right. From Rio de Janeiro at 22.9°S, the Moon arcs through the northern sky. Moonrise and moonset times also differ by longitude — a city 15° to the east sees the Moon rise roughly 1 hour earlier.

From the Blog

Data verified by Dr. Meera Iyer, Astrophysicist · Sources: Jean Meeus' Astronomical Algorithms · Methodology
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