Home
Weather Dublin
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
    Home / Weather News /

    It's a blue moon too: A supermoon rises tonight!

15:00
30 August 2023

It's a blue moon too
A supermoon rises tonight!

super, luna blu, astronomia

The year's third supermoon is set to loom large above us, and tonight's rise is extra-special because it is also a blue moon!

Sadly, the moon will not actually turn blue, instead the term refers to the second full moon to occur within the same month.

Our lunar companion's rise will peak at 02:35 am in the early hours of Thursday morning but the display will be on show throughout the cycle.

The occurrence of a blue moon itself is a rare phenomenon, occurring once every three years on average. The last blue moon we saw in the UK and Ireland rose on Halloween 2020.

According to the lunar cycle, a full moon occurs once every 29.5 days. Therefore, as all months (other than February) are longer than 29 days, it is possible that a second full moon would occur in a single month and is consequently called a blue moon.

A supermoon is much more common, this is the third of four this year, with the next set to rise in September.

A supermoon occurs when the full moon coincides with the perigee, this is the closest point to Earth in the Moon’s orbit.

As the Moon’s orbit is elliptical, the distance between it and us is always changing. Compared to a full moon at its apogee, its furthest point away, a supermoon is typically 30% brighter and 13% larger.

Most full moons are named, with these names coming from Native American tributes, although this is not the case with blue moons.

If you capture the super, blue moon tonight, we would love to see! Submit images by tapping the image icon in the app or use our dedicated uploader.

Ryan Hathaway
More on the topic
Split image showing a nighttime lightning strike beneath storm clouds on the left and a lightning detection map with dense storm activity across central England on the right.
Wednesday 27 May 2026

Trickier than you think

Why it's hard to pinpoint thunderstorms
Temperature map of the UK and western Europe showing intense red and orange heat across southern Britain, with temperatures reaching 31°C near London and a large thermometer icon beside the map.
Friday 22 May 2026

Highs over 30 degrees

Unusually warm for the long weekend
Temperature map of southeast England showing overnight low temperatures, with Kenley highlighted at 21.3°C and surrounding areas in yellow-orange shades indicating mild nighttime conditions.
Tuesday 26 May 2026

May heatwave

Tropical night breaks overnight record
All weather news
This might also interest you
Illustration of white and yellow fireworks on a blue background.
Wednesday 31 December 2025

Hello 2026

Happy New Year
Weather graphic showing rain and wind fields over the Canary Islands and a central warning symbol.
Friday 12 December 2025

Storm and rain

Turbulent weather in the Canary Islands
Split image showing a person in a yellow jacket struggling against strong winds and heavy rain on a street at night on the left, and an Irish wind forecast map on the right with red and purple shading, gusts up to 75 mph, and a wind warning icon, divided by a curved white line.
Saturday 24 January 2026

On this day...

Historic Storm Éowyn arrives
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwitteryouTubelinkList