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
Icy spells in the Southern Hemisphere. Snow in the Andes. . . Tuesday 28 July 2026
A composite image showing a temperature radar map of South America and a snow-covered town in Chile. The winter cold is bringing heavy snowfall to the Andes and, in some areas, snow down to lower altitudes.
Tuesday 28 July 2026

Snow in the Andes

Icy spells in the Southern Hemisphere
Heavier rainfall over the week for some. Ireland & Scotland. . . Tuesday 28 July 2026
Split image showing a Europe rainfall accumulation forecast map on the left with the highest totals across the UK, Ireland, and Scandinavia, and a satellite weather map on the right with a broad band of rain stretching across Ireland, Scotland, and northern Britain, highlighted by a rain cloud icon.
Tuesday 28 July 2026

Ireland & Scotland

Heavier rainfall over the week for some
Half of England now in drought. Joining North Wales. . . Wednesday 29 July 2026
Dry section of the River Thames beneath a small stone bridge, with the riverbed exposed and cracked after prolonged, dry weather, while a person walks along the roadside above.
Wednesday 29 July 2026

Joining North Wales

Half of England now in drought
All weather news
This might also interest you
Long-term trends need a pinch of salt. 40 °C in July?. . . Tuesday 30 June 2026
Temperature radar of 2022 heatwave where the all-time temperature record in the UK was set. Warning symbol overlain.
Tuesday 30 June 2026

40 °C in July?

Long-term trends need a pinch of salt
Flooding, gales, and heavy snow. Storm Chandra. . . Tuesday 27 January 2026
Split image showing aerial flooding in a town with muddy water covering roads on the left, and a rural road on the right blocked by heavy snowfall with vans stopped and a person walking in snow.
Tuesday 27 January 2026

Storm Chandra

Flooding, gales, and heavy snow
Turbulent weather in the Canary Islands. Storm and rain. . . Friday 12 December 2025
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
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