Britain set for its best solar eclipse in decades - here's everything you need to know
On 12 August 2026, the UK will experience its most substantial solar eclipse since 1999, masking over 90% of the Sun alongside the Perseid meteor shower.
On the evening of Wednesday 12 August 2026 the United Kingdom will see more than 90 % of the Sun masked by the Moon – the deepest coverage above British skies since the total eclipse of 1999. The partial eclipse will stretch from 6.17 pm to 8.06 pm local time, reaching roughly 95 % in Cornwall, about 90 % in London and around 93 % in western Scotland.
How the event fits into the global eclipse map
The Moon’s darkest shadow will carve a narrow corridor of totality that begins over extreme northern Russia, then sweeps across Greenland, Iceland and the Atlantic before striking northern Spain and the Balearic Islands. In Spain, totality will arrive just before sunset, with the eclipse ending as the Sun dips below the horizon. NASA’s schedule places the start of totality in Iceland at 5.48 pm local time and in Valencia at 8.32 pm local time.
Media additions
For most of Europe, including major cities such as London, Madrid and Paris, the eclipse will be partial but still dramatic. The Three report notes that a partial eclipse will also be visible across Canada and parts of north‑western Africa.
In the United Kingdom the event is the most substantial since the 1999 totality, and the next full eclipse visible from Britain is not expected until 2081, according to the Three article.
Seeing it safely – the exact steps
The Royal College of Ophthalmologists warns that looking directly at the Sun can cause permanent retinal damage. Its president, Mohamed Elalfy, explains that “the retina has no pain receptors, so people will not feel the damage as it happens.” He adds that symptoms may appear only hours later.
"This is a stellar opportunity not to be missed."
Tom Clarke, science and technology editor, Sky, via three.fm
The American Astronomical Society outlines three quick checks for ISO 12312‑2 certified glasses:
- Take them indoors and look around; you should see almost nothing except very bright lights that appear faint.
- Step outdoors; you should still see nothing, perhaps a faint reflection off a shiny surface.
- Glance at the Sun for less than a second; a sharp‑edged, comfortably bright disc should appear without overwhelming brightness.
Regular sunglasses are not a safe alternative. If you lack certified glasses, the Royal College recommends indirect viewing – for example a pinhole projector made from a piece of paper or a colander.
Glass demand, counterfeit warnings and the power‑grid angle
Specialised eclipse glasses have sold out in many shops and national parks. The Royal Greenwich Observatory alone reports 15 000 pairs sold in the build‑up to the event.
Authorities caution against “knock‑off” glasses, echoing the three.fm warning that only ISO 12312‑2 certified viewers are safe.
Octopus Energy, Britain’s biggest energy supplier, has issued a public appeal to reduce electricity use during the eclipse. The company notes that when the Moon blocks the Sun, “a huge chunk of Britain’s solar power will be knocked out – just as millions of people are getting home and electricity demand spikes.”
Live coverage and online options
For those unable to travel to the path of totality, multiple livestreams will stream the event from the moment it begins. NASA’s official broadcast starts at 1.15 pm EDT, with a live feed from locations along the eclipse path. ESA, Timeanddate and the Royal Observatory Greenwich will also provide free online coverage, each offering slightly different angles – telescope views from the Observatorio Astrofísico de Javalambre in Spain, ground‑level commentary from León and Mallorca, and a silent feed focused purely on imagery from the UK.
NASA’s program manager Kelly Korreck says, “From our unique perspective on Earth during a total solar eclipse, scientists can study the Sun’s corona in a way we can’t from anywhere else in the solar system.” The agency will also fly a WB‑57 research aircraft and launch scientific balloons in Iceland and Spain during totality.
Sky News will host a domestic live programme from 5 pm to 9 pm, featuring experts from the Royal College of Ophthalmologists and live‑stream inserts from the eclipse corridor.
The Perseid meteor shower – a double celestial bonus
The eclipse coincides with the peak of the annual Perseid meteor shower, produced by Earth passing through debris left by comet Swift‑Tuttle. NASA estimates that under ideal conditions 50 to 100 meteors per hour may be visible, while the American Meteor Society predicts 30 to 50 per hour from rural sites. The moon will be in its new phase, eliminating lunar glare and making the night sky especially dark.
Observers in the UK can expect the best meteor activity between midnight and 5.30 am, when the constellation Perseus is high overhead. The tempo.co article notes that the meteor shower will reach its apex overnight from 12 August to 13 August, providing a “notable celestial event of 2026”.
Scientific opportunities beyond the spectacle
Totality offers a narrow window for solar scientists to probe the Sun’s corona, study its chemical composition and observe how sudden changes in sunlight affect Earth’s atmosphere. Historian parallels are drawn to the 1919 total eclipse that confirmed Einstein’s theory of general relativity, underscoring the enduring research value of such events.
In the United Kingdom, the Royal Observatory Greenwich will run an expert‑led stream and a separate silent feed, allowing amateur astronomers to compare real‑time photos with the predicted corona profile.
What comes next?
After the August 12 eclipse, the next major solar eclipse visible from the UK will not occur until 2081, a span of 55 years. For total eclipses in Europe, observers will have to wait until the next one in 2035, while North America’s next total eclipse will be in 2044 over the Upper Midwest.
In the immediate aftermath, skywatchers are encouraged to share safe‑viewing photos on social media using the hashtag #Eclipse2026, and to keep an eye on weather updates for the Perseid peak, which may shift with cloud cover.
Whether you plan to travel to Mallorca, set up a pinhole projector on a balcony, or follow the live streams from your sofa, the combination of a deep partial solar eclipse and a meteor‑rich night promises a memorable night sky across Britain and beyond.
