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

    Impact of supermoons on Earth

15:00
9 July 2023

Higher tides, less sleep
Impact of supermoons on Earth

Moon rises over ocean

The world is transfixed by the rise of any supermoon. But did you know that these events influence life on Earth?

It’s no secret that the Moon’s gravitational pull changes the ocean’s tides, but during super moons the impact is even more pronounced.

Supermoons are also known as perigee moons, at these times the orbit of our rocky companion brings the satellite to its closest point to Earth. Bulges in the ocean form as the gravitational pull of the moon passes by, creating tides.

Research shows that oceans produce bigger tides, reach higher water levels, and cause more severe erosion at times of a supermoon.

July astronomy outlookread more

Meaning those living in coastal areas could be at a higher risk of flooding during these events. With global sea levels rising, the impact of each supermoon will only become more pronounced.

There is also an impact on people, in fact the word ‘lunatic’ has its roots in the Latin for moon - luna - and the belief that changes in the moon cycle could cause insanity.

Looking at sleep, a research study released last year by Sweden’s Uppsala University suggests men are more affected by the moon than women. During its waxing phase, men slept 20 minutes less on average with greater restlessness and lower sleep efficiency as the full moon approaches. Meanwhile, women saw 12 minutes less sleep.

The lunar cycle has also been linked to changes in our cardiovascular health. One study shows that our blood pressure can drop by 5 millimetres Hg during times of a full or new moon. Even our heart rates are slower when the full moon arrives.

Although the moon can make small changes to our behaviour, it is unlikely to be a cause of lunacy. You may have simply had a little less sleep last week... although that could also have been thanks to the heatwave too!

Ryan Hathaway
More on the topic
Getting through the latest heatwave. Tips to beat the heat. . . Tuesday 11 August 2026
Split graphic showing temperatures up to 35°C in England and 28°C in Ireland beside a person applying sunscreen, with a heat warning symbol highlighting hot weather.
Tuesday 11 August 2026

Tips to beat the heat

Getting through the latest heatwave
Late season views as summer rolls on. Your weather - Your shots. . . Sunday 9 August 2026
Split image showing a horseback ride along a green hillside trail beneath blue skies on the left and a small sailboat on a calm coastal bay under broken clouds on the right.
Sunday 9 August 2026

Your weather - Your shots

Late season views as summer rolls on
The Perseids reach their peak. Shooting stars overhead. . . Tuesday 11 August 2026
Shooting stars in the night sky
Tuesday 11 August 2026

Shooting stars overhead

The Perseids reach their peak
All weather news
This might also interest you
Storm Chandra makes impact. Severe gales & heavy rain. . . Tuesday 27 January 2026
Split image showing strong winds over the UK on a forecast map and widespread rain and snow on a weather radar map.
Tuesday 27 January 2026

Severe gales & heavy rain

Storm Chandra makes impact
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
Historic Storm Éowyn arrives. On this day.... . . Saturday 24 January 2026
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