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
Severe weather hits Mallorca and Italy. Severe thunderstorms. . Weather Videos. Thursday 10 September 2026
Numerous thunderstorms are sweeping across La Palma. The many lightning symbols on the radar and lightning map show that there is heavy lightning activity across large parts of the island. The thunderstorms are striking particularly in the island’s interior and in the south. On the right, you can see the aftermath: a large fallen tree has buried a car beneath it. Emergency services are clearing up the damage. So, along with the thunderstorms, not only heavy rain but also gusts of wind can become a problem.
Weather VideosThursday 10 September 2026

Severe thunderstorms

Severe weather hits Mallorca and Italy
Cheshire Gap produces shower funnel. Local phenomenon. . . Wednesday 9 September 2026
Weather map showing showers moving southeast from Liverpool toward Birmingham, driven by Cheshire Gap convergence across central England.
Wednesday 9 September 2026

Local phenomenon

Cheshire Gap produces shower funnel
Autumn colours light the skies. Your weather - Your shots. . . Sunday 13 September 2026
Split image showing a fiery red-orange sunset over a rural road and fields beside a golden sea sunset with a silhouetted seabird in flight.
Sunday 13 September 2026

Your weather - Your shots

Autumn colours light the skies
All weather news
This might also interest you
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
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
New records for England and Wales. Broken again tomorrow?. . . Thursday 25 June 2026
Temperature map of southwest Britain on 25.06 showing extreme heat across southern Wales and southwest England, with Bute Park in Cardiff highlighted at 34.2°C and Yeovilton at 36.4°C amid widespread deep red heat zones.
Thursday 25 June 2026

Broken again tomorrow?

New records for England and Wales
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