The Cold Moon appeared 14 per cent larger and 30 per cent brighter than usual across the planet.
A supermoon can only happen if it's a full moon and if the moon is closer to Earth than usual.
A Supermoon is about 40,000 kilometers (~24,855 miles) closer to Earth, on average, than a micromoon, when the moon is at its furthest distance from us..
The supermoon, as it's called, will appear in the night sky on the evening of December 3rd. Perigee syzygy has occurred three previous times in 2017.
The third supermoon was expected to be the most interesting, becoming a blue moon, the second full moon in a calendar month.
A flamingo installation stands out against the bright backdrop of the supermoon.
Flooding is a possibility on these days; in November of 2016 after the largest supermoon seen in decades, Portland Harbor saw a high tide of 12 feet.
Tom Kerss, an astronomer at Royal Observatory Greenwich, said the exact moment of full moon - when the moon sits opposite the sun in the sky, which was 3.47pm (10.47am ET) today in the United Kingdom.
The final supermoon of 2018 will occur just a few weeks later, on January 31, with extra superlatives.
Check out these attractive images of the supermoon from different areas of the world.