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 /

    Arctic and Antarctic: Sea ice extent dropping at alarming rate

07:00
23 September 2023

Arctic and Antarctic
Sea ice extent dropping at alarming rate

The partially melting glaciers as polar bears walk in Svalbard and Jan Mayen on July 15th 2023.
The partially melting glaciers as polar bears walk in Svalbard and Jan Mayen on July 15th 2023. - © picture alliance

Both Arctic and Antarctic sea ice is dropping at an alarming rate, significantly lower than normal for the time of year.

During this time of the year, towards the end of summer in the Northern Hemisphere, and the end of winter in the Southern Hemisphere, sea ice usually reaches its lowest extent.

However, what is unsettling, is that this current extent is unprecedented when comparing to previous averages or record lows, across both sides of the globe.

In the Arctic, sea ice is 6th lowest on record, behind 2012, 2020, 2007, 2016 and 2019. It is still declining despite being 19th September.

Antarctica

Antarctica is experiencing an alarming decline in sea ice levels during its winter months, with measurements now reaching historic lows.

The once-stable sea ice surrounding Antarctica, which plays a crucial role in cooling the Earth, has dwindled to less than 17 million square km.

This figure represents a staggering 1.5 million square km less than the average sea ice extent for September, and it falls well below the previous record lows ever observed during winter.

An area of missing ice around five times the size of the British Isles

Such a dramatic reduction in sea ice has significant implications for global climate dynamics, as Antarctica transitions from being Earth's refrigerator to becoming a radiator of heat.

Experts are not optimistic about the possibility of a substantial recovery in sea ice levels. This trend is exacerbated by a recent extreme heatwave that struck East Antarctica in March 2022.

During this anomalous event, temperatures in East Antarctica reached around -10°C, a stark contrast to the typical -50°C temperatures expected there during that time of year.

More on the topic

Staying fairly blustery across Ireland. Autumn greetings. . . Thursday 29 October 2026
Wind map showing 35 mph winds near Galway and Cork, 25 mph near Dublin and Belfast, and lighter winds across western Britain, with a windsock symbol.
Thursday 29 October 2026

Autumn greetings

Staying fairly blustery across Ireland
Wetter but warmer, sunnier October. Monthly weather review. . . Tuesday 3 November 2026
Split image showing two people sheltering under a blue umbrella in rain and a weather map with widespread rain across Britain and temperatures of 9–16°C.
Tuesday 3 November 2026

Monthly weather review

Wetter but warmer, sunnier October
From late summer to storm warnings. Contrasts in Europe. . Weather Videos. Thursday 29 October 2026
Split image: On the left, the temperature radar for Spain and Portugal shows readings of up to 28 degrees. On the right, waves crash onto a flooded beach dotted with parasols and sun loungers amid stormy weather.
Weather VideosThursday 29 October 2026

Contrasts in Europe

From late summer to storm warnings
All weather news

This might also interest you

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
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
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