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The moon won't actually be blue, but it will definitely be super.
So, what exactly is the blue supermoon coming on Thursday, August 31, and will weather conditions around Australia be favourable for a spot of moon gazing?
We break down some of the science behind the phenomena.
READ MORE: Two supermoons in August mean double the stargazing fun
First things first: what is a super blue moon?
You will not be shocked to learn that a super blue moon is a combination of two things – a supermoon and a blue moon. Let's deal with those things one at a time.
Wait, a blue moon is not actually blue?
With apologies, it is not. There have been a few definitions over time, but the widely accepted modern definition of a blue moon is a second full moon in the same month.
The lunar cycle is approximately 29.5 days, which means you need the first full moon to occur right at the start of the month to leave enough time for another.
That only happens once every two or thee years, which is why the phrase "once in a blue moon" means something that happens infrequently.
Mythology also links werewolves to supermoons, blue moons and especially blood moons – something taken through to popular culture by Hollywood.
READ MORE: India becomes the fourth country ever to land a spacecraft on the moon
Are supermoons really super?
Put it this way: supermoons are definitely more super than blue moons are blue. Our meteorological mates at Weatherzone summed them up pretty well recently when they explained it.
"A supermoon is a full moon or new moon that occurs when the moon is near its closest point to Earth," they wrote.
"Because the moon's orbit is not a perfect circle, it moves closer and further away from Earth throughout the year. At its closest point to Earth, the moon can appear about six to seven per cent larger than an average full moon."
So supermoons actually appear bigger to us, which makes for great moonrise pics. They are also more common than blue moons, occurring about three to four times each year.
READ MORE: India becomes the fourth country ever to land a spacecraft on the moon
Will the weather be kind for the blue supermoon?
Again thanks to Weatherzone, here is the forecasted weather for the capital cities across the country at 6pm local times on Thursday, August 31, the night of the blue supermoon.
While most cities look likely to have partly cloudy skies, you won't need completely clear skies to enjoy the blue supermoon. Indeed, a few clouds might just add a bit of texture to the scene.
Just a word that forecasts tend to become more reliable the closer you get to a date, so it might pay to check back again closer to the date.
Sydney
Chance of rain: 29%
Cloud coverage: 63%
Melbourne
Chance of rain: 5%
Cloud coverage: 68%
Brisbane
Chance of rain: 17%
Cloud coverage: 43%
Perth
Chance of rain: 18%
Cloud coverage: 27%
Adelaide
Chance of rain: 5%
Cloud coverage: 65%
Hobart
Chance of rain: 39%
Cloud coverage: 72%
Canberra
Chance of rain: 9%
Cloud coverage: 63%
Darwin
Chance of rain: 5%
Cloud coverage: 54%
