The moon will turn blood red as it passes through the shadow of the earth at 3.47am on Monday morning.
Amateur astronomers are gearing up for the show - but what to do if the weather is uncooperative on the night itself? Luckily, you can catch it live on the internet.
British weather might not be the most reliable, but the current forecast suggests that the best spot to catch a glimpse of the supermoon are Eastern Scotland, North East England, the Midlands, Wales and South West England.
Read more: How and where to watch the super blood moon
If you’re unlucky enough to be in a cloud-covered spot, or perhaps want to see the rare event from the comfort of your bed - don’t worry. Nasa is broadcasting the whole thing live on its website, with feeds airing from 1am onwards from several spots around the US to ensure decent weather, including Nasa’s own space flight centre, the Adler planetarium in Chicago and the Fernbank observatory in Atlanta. The agency writes on its website:
The live feed is an alternative for those experiencing less-than-optimal weather or light-polluted night skies.
If you miss it this time around, don’t hold your breath: The next supermoon eclipse is 18 years away.