Partial Lunar Eclipse to Colour September Full Moon Red

Irish skywatchers will get a glimpse of a partial lunar eclipse on Sunday, September 7th, as the September full moon rises.

Known as the “Corn Moon” for its connection to the harvest season, the full moon will take on deep red hues during the eclipse, earning it the nickname “Blood Moon”.

The eclipse occurs when the Earth moves between the sun and the moon, casting a reddish shadow across the lunar surface. While the phenomenon will be fully visible across Asia, Australia and much of Africa, observers in Ireland will see only the final stages as the moon appears above the horizon.

In Dublin, the eclipse begins at around 5.30pm and peaks shortly after 6pm, but moonrise does not occur until 7.35pm. Observers will see the moon gradually brighten as it emerges from the Earth’s shadow. The view will vary depending on location and local weather, and experts suggest finding a clear, east-facing vantage point for the best sight.

The event comes after a series of astronomical highlights this autumn, including close approaches of Jupiter and Saturn and the Perseid Meteor Shower. Unlike solar eclipses, lunar eclipses are safe to watch with the naked eye, though binoculars or a telescope can improve the experience.

This September eclipse is the last of its kind in 2025 and the only lunar eclipse visible from Ireland until 2026.