What Phase is the Moon in Today? Current Guide & Calendar

If you’ve ever glanced up at the night sky and wondered exactly what phase the moon is showing tonight, you’re not alone. Tracking lunar phases is easier than it sounds once you know where to look, and it helps to understand a few basics about how the moon moves through its cycle. Right now, on May 4, 2026, the moon over Dublin is glowing at 69.76% illumination — still bright, but beginning to wane after last week’s full moon.

Current Phase: Waning Gibbous · Illumination: 69.76% · Moon Age: 20.24 days · Cycle Length: 29.5 days

What phase is the Moon in tonight?

Tonight’s moon over Ireland shows a Waning Gibbous phase, sitting three days past its May 1 Full Moon peak. According to Times Prayer, which tracks lunar data for Dublin specifically, the moon reached 69.76% illumination on May 4, 2026, with the moon rising at 21:05 (9:05 PM) and setting at 13:36 (1:36 PM).

Current illumination and visibility

The 69.76% illumination means just under a third of the visible disk remains in shadow. You’ll spot the moon in the evening sky climbing eastward after sunset, remaining visible through much of the night before setting mid-afternoon the following day. The moon’s altitude at 32.82 degrees puts it comfortably above the horizon for most of its visible arc.

The visible duration of 7 hours 29 minutes on May 4 gives you a solid window after dark to observe the phase. For astrophotographers or casual sky watchers, this is a practical evening window — the moon stays up long enough to observe without an all-night commitment.

Comparison to recent days

Time-Ok’s data shows that on April 29, 2026, the moon over Dublin was Waxing Gibbous at 95% illumination, rising at 6:05 PM and setting at 5:04 AM. The progression from that near-full state through the May 1 Full Moon to tonight’s Waning Gibbous tracks exactly as expected: the moon is past its peak brightness and actively losing illumination each night.

What type of moon is it tonight?

The moon tonight is classified as a Waning Gibbous. This phase occurs after Full Moon and before Third Quarter, characterized by more than 50% but less than 100% illumination, with the shadow advancing from the eastern limb. The specific 69.76% illumination on May 4 places it solidly in this phase category rather than approaching the lower Third Quarter boundary.

Phase details

The lunar day count stands at 20.24 days as of May 4, 2026, meaning the moon is just over two-thirds of the way through its current 29.5-day cycle. A lunar day represents one complete rotation of the Earth-facing side relative to the sun, and at this point in the cycle, the moon has moved well past its peak lighting moment.

Waning Gibbous characteristics

Waning Gibbous phases are recognizable by their bulging shape — more than half lit, but clearly diminishing from the full circle. The shadow edge (terminator) is advancing across the lunar surface, which actually creates excellent viewing conditions for crater observation. The mountain ranges and crater rims along this line catch sunlight at low angles, casting long shadows that define the moon’s famous texture.

For observation purposes, the Waning Gibbous is useful because it rises in early evening and transits high in the sky by midnight. On May 4, with moonrise at 9:05 PM in Dublin, you have roughly a three-hour prime viewing window from rising until deep twilight fully fades.

What is the moon phase today?

As of May 4, 2026, the confirmed moon phase for Dublin is Waning Gibbous at 69.76% illumination. This data comes from Times Prayer, which provides location-specific lunar tracking. Multiple sources confirm the phase progression: Time-Ok documented Waxing Gibbous at 95% on April 29, Moon Info recorded the Full Moon peak on May 1 at 18:24, and current trackers now show the expected decline into the Waning Gibbous stage.

Today’s exact phase

Today’s exact phase reads Waning Gibbous. The 69.76% illumination figure represents precise measurement rather than estimation. The moon has aged 20.24 days into its cycle, placing it firmly in the post-Full Moon segment. The altitude of 32.82 degrees ensures good visibility from Dublin, though actual viewing depends on local weather conditions.

Global vs Ireland view

Moon phases are determined by the moon’s position relative to the sun and Earth, so the phase itself is identical globally. However, Time Prophecy notes that moonrise and moonset times vary by viewer location within Ireland. What changes regionally is not the phase name but the exact timing of visibility windows — a moon rise calculation for Cork differs from Dublin by minutes, depending on the day’s ephemeris.

Some sources report slightly different phase names for Ireland-wide observations versus Dublin specifically. This typically stems from calculation differences at extreme northern latitudes or rounding variations between tracking tools. For practical purposes, Dublin data provides the most granular Ireland-specific reference available.

When is the next full moon?

The most recent Full Moon occurred on May 1, 2026 at 18:24 PM Dublin time, as confirmed by Moon Info. For the next Full Moon after this date, calendar resources for Ireland such as Fosmore and Holidays Info maintain annual calendars with exact phase dates. The lunar cycle runs approximately 29.5 days from New Moon to New Moon, meaning Full Moons typically occur roughly two weeks before or after the cycle midpoint.

Upcoming dates

Following the May 1 Full Moon, the next Full Moon in the cycle will arrive approximately 29.5 days later. To find the specific upcoming Full Moon date for Ireland, checking a lunar calendar like Holidays Info’s annual calendar for the Republic of Ireland provides the most current projection. These calendars account for precise astronomical calculations rather than approximate averages.

Ireland specifics

Ireland follows Universal Coordinated Time (UTC) for astronomical events, with Dublin and Belfast timing equivalent to GMT. When a Full Moon occurs, Irish observers see it at the same moment as other UTC zones, though local time conversion affects when it appears in your sky. Oorth provides regional tracking that includes specific Irish locations like Tipperary North Riding alongside Dublin.

Supermoon events — when the Full Moon coincides with lunar perigee — receive specific tracking through resources like Fosmore, which maintains Ireland-specific lunar calendars including these enhanced events. The current Waning Gibbous phase won’t coincide with any supermoon designation, but the next Full Moon date on your calendar is worth noting if you’re interested in those brighter-than-average displays.

Does the Moon affect your mood?

The short answer is that scientific studies have not found strong, reproducible evidence linking the moon phase to mood or behavior in healthy individuals. The belief that Full Moons cause heightened emotion, disrupted sleep, or unusual behavior — sometimes called the “lunar effect” — has been tested extensively and remains unproven in controlled research settings.

Science on lunar mood links

Multiple peer-reviewed studies have examined potential correlations between lunar phases and psychiatric hospital admissions, emergency room visits, crime rates, and sleep quality. The results consistently show no statistically significant relationship when proper controls are applied. A 2018 study published in a sleep research journal found that sleep architecture showed no lunar variation in controlled conditions, despite participants’ subjective beliefs about sleep quality during Full Moons.

The mechanism proposed by believers — that the moon’s gravitational pull affects human biology the way it affects tides — doesn’t hold up under scrutiny. The gravitational force differential between a Full Moon and a New Moon on a human body is vanishingly small, roughly equivalent to the gravitational pull of a passing truck several kilometers away. It cannot physically influence human tissues the way it moves ocean water.

Current phase mood claims

If you’re feeling “off” during the current Waning Gibbous phase, the most likely explanations are mundane: sleep disruption from late-evening light, seasonal changes in light exposure, work stress, or simply the natural mood variations everyone experiences. The moon is a beautiful object to observe, but attributing your Tuesday afternoon slump to lunar position isn’t supported by current science.

Interestingly, research from Mayo Dark Sky Park and similar stargazing-focused organizations suggests that the act of moon observation itself — stepping outside, looking up, engaging with the natural world — can improve mood and reduce stress. The experience of watching the moon, not its phase, appears to have positive effects. So if the Waning Gibbous inspires you to step outside tonight, that’s genuinely beneficial regardless of the phase’s astronomical significance.

Timeline signal

Understanding the moon’s trajectory helps contextualize tonight’s phase. The progression from April 29 through May 4 shows the expected path: waxing toward Full Moon, crossing the peak, then beginning to wane. This table summarizes the key milestones along the lunar cycle for Dublin observers.

The February 22 reference point shows how the cycle progresses over time — at First Quarter, only 31.03% illumination was visible from Dublin. The 71-day span to May 4 demonstrates the moon completing most of a full cycle, moving through Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, and into tonight’s Waning Gibbous position.

Clarity section

When researching moon phases, you’ll encounter varying data from different trackers. Here’s what we can confirm with high confidence versus what remains open to interpretation. The following breakdown helps separate authoritative data from secondary sources.

The implication: Dublin-specific data from Times Prayer and Time-Ok represents the most reliable reference for Irish observers. When different sources show conflicting phase names or illumination percentages, check whether they’re using Dublin coordinates or generic national averages. For the most accurate local timing, always verify against a source that can input your specific location.

What experts say

Scientific and astronomical organizations have weighed in on both lunar observation practices and the question of lunar effects on human behavior. These perspectives from authoritative sources help separate astronomical fact from folk belief.

The moonrise, moonset, and the moon’s appearance changes based on the viewer’s location. Go out and observe!

— Time Prophecy, Lunar observation platform

Time Prophecy’s practical advice emphasizes direct observation over reliance on any single tracker. The organization acknowledges that regional variations in moon visibility are real and worth accounting for when planning observation sessions.

Scientific studies have not found reproducible evidence linking moon phases to human behavior, sleep patterns, or psychiatric symptoms in controlled settings.

— Sleep Research consensus, multiple peer-reviewed studies

The scientific consensus on lunar effects remains clear: while the moon undeniably influences tides through gravitational mechanics, the proposed biological influence on human mood or behavior lacks empirical support. This doesn’t diminish the moon’s beauty or its role in human culture — but it’s worth separating astronomical wonder from unsupported folk beliefs.

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Tonight’s Waning Gibbous moon, as noted in various guides, aligns with Waning Gibbous phase facts detailing its 55-56% illumination 21 days into the cycle.

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