Why the aurora dazzled in 2024 and what 2025 has in store

Sky filled with green and purple of the aurora with some shafts of white light running vertically. In the distance a ruined castle sits on top of a hillImage source, BBC Weather Watchers / Paul Appleby
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The aurora put on a spectacular display across the UK in August

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For most of us the chance to see the aurora is just a bucket list wish involving costly travel to the Arctic Circle and then not always getting the big reward.

However, in 2024, the lights were visible unusually far south, with people reporting stunning sightings across southern England on multiple occasions.

Featuring a kaleidoscope of reds, greens, purples and blues, and with even a rare STEVE phenomenon putting in an appearance, it was best year for these spectacles for 20 years.

And the good news is this looks likely to continue into 2025.

Why 2025 will mesmerise too

The main reason why the lights have been so dazzling is because we are at a peak in the Sun's 11-year cycle of activity which will continue into 2025.

During this peak there is an increase in the number of eruptions from the Sun, including solar flares and coronal mass ejections.

These send powerful bursts of energy and material into space, causing - amongst other things - the aurora that we see from Earth.

Graph showing the number of sunspots on the y-axis with time in years on the x-axis in years, with observed sunspots increasing in number from 2020 to 2024. This follows the forecast solar cycle showing a peak in the predicted sunspots in 2025Image source, BBC Weather
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Number of observed sunspots along with the forecast showing a peak and 'solar maximum' in the later months of 2025

The increase in eruptions is brought about by the Sun's magnetic poles flipping. On Earth that would be like the North and South Poles swapping places.

Close up of the Sun showing an eruption of solar material shooting through the Sun's atmosphereImage source, NASA/Goddard/SDO/PA
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Solar flare seen on the surface of the Sun in 2024

Did better tech help us spot aurora?

The last peak in the Sun's activity - known as the "solar maximum" - was around 2014.

Now technology has improved it means we have better forecasts, apps and social media to give us real-time information on solar activity.

A decade ago phone cameras had lower resolutions and fewer photographic features. Now, though, smartphones are capable of taking some stunning pictures (as demonstrated by the photos taken by BBC Weather Watchers).

A large rock on a beach with the aurora in the sky above, and also a STEVE - a streak of very bright light with a tinge of red and green running through the skyImage source, BBC Weather Watchers / Northernpxl
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The rarer STEVE phenomenon was seen alongside the aurora in Northumberland

Space weather forecasting was also generally not as well developed as it is now.

The Stereo satellites that are positioned either side of the Sun and which study and help improve space weather forecasts were not in position until 2011. They gave solar physicists the first 360-degree view of our star.

And the Met Office had only just opened its dedicated Space Weather Operations Centre in 2014.

Your striking photos

BBC Weather Watchers took some amazing photographs of the aurora this year. Here are just a few of our favourites.

A perfectly still lake reflecting the reds and greens of the aurora display in the skyImage source, BBC Weather Watcher / Bolly
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Striking red and green aurora in Keswick

Sky filled with mostly shimmering greens and a streak of red of the auroraImage source, BBC Weather Watcher / Jonny Gios
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Fabulous patterns of the aurora seen in Cumbria in October

Greens and purples of the aurora fill the night skyImage source, BBC Weather Watchers / Cat Lloyd
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The Northern Lights also illuminated the sky above Gwynedd in the autumn

Sky filled with greens and and darker clouds during an aurora displayImage source, BBC Weather Watcher/ Rossi
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Rich, deep greens shining over the Highlands during a display earlier in 2024

Despite being so widespread some people still missed out on this year's aurora displays - including me! But at least I did get to see it in 2023.

BBC Weather presenter Simon King stands with arms raised into the sky where greens and reds of the aurora fill the darknessImage source, Simon King
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The aurora eluded Simon King in 2024 but he did see it in Wales the year before