Solar Eclipse Glasses UK: The countdown to one of the most impressive solar eclipses visible from the UK has entered its final days, and millions of skywatchers are preparing for the evening spectacle. On August 12, the Moon will move across the Sun and cover around 90% of it from London, with coverage reaching roughly 95% in Cornwall and 94% in Pembrokeshire. But before looking toward the sky, viewers need to make one essential preparation: getting proper protection for their eyes.
The eclipse will remain partial across the UK, meaning a portion of the Sun will remain visible throughout the event. That makes it unsafe to look directly at the Sun without certified solar viewing protection. The Royal Observatory Greenwich recommends eclipse glasses that meet the ISO 12312-2 international safety standard.
Solar Eclipse Glasses UK: Why You Need Special Eclipse Glasses?
A solar eclipse can look less intense because the Moon blocks much of the Sun, but the remaining sunlight can still seriously damage the eyes.
Regular sunglasses cannot provide enough protection. Wearing multiple pairs of ordinary sunglasses also does not make direct solar viewing safe.
NASA advises people watching a partial eclipse to use genuine solar viewing glasses or another safe solar filter that meets the ISO 12312-2 standard.
The Royal Observatory Greenwich also warns viewers to check the condition of eclipse glasses before using them. Scratched, creased, or damaged filters may no longer provide adequate protection.
Solar Eclipse Glasses UK: What Does ISO 12312-2 Mean?
The ISO 12312-2 designation identifies products designed for direct viewing of the Sun and sets requirements for the filters used in solar viewing equipment.
Buyers should look for the relevant safety certification printed on the glasses or packaging rather than relying only on descriptions such as “solar glasses” or “eclipse glasses.”
The Royal Observatory Greenwich specifically advises viewers to check for ISO 12312-2 or ISO 12312-2:2015 certification when choosing eclipse glasses.
Solar Eclipse Glasses UK: Where Can You Buy Solar Eclipse Glasses?
Eclipse glasses are available from specialist astronomy retailers and other sellers ahead of the August 12 event. Prices can vary depending on the number of pairs included and whether the package contains additional equipment.
The key point is to verify the product’s safety certification before buying rather than choosing glasses simply because they are inexpensive.
The Royal Observatory Greenwich itself lists certified solar viewing glasses through its official shop, while astronomy societies and specialist retailers may also offer suitable products.
If buying online, viewers should carefully check the product description, certification information and seller details before placing an order.
Where Can You Buy Solar Eclipse Glasses in the UK?
- Royal Observatory Greenwich: A reliable option is to buy certified solar eclipse glasses through the Royal Observatory Greenwich’s official shop.
- Amazon UK: Several eclipse-glasses options are available, but check the manufacturer, certification and seller carefully before buying. Recent UK coverage has listed budget options on Amazon.
- Specialist astronomy retailers: Stores such as First Light Optics and other specialist astronomy retailers stock solar-viewing glasses.
- Jessops: Eclipse glasses have also been available through Jessops, including in-store and online options.
- Decathlon: Some shoppers have reported finding eclipse glasses at Decathlon stores, although availability can vary by location.
- Local astronomy societies: Astronomy clubs and societies may sell or distribute certified eclipse glasses and may also organise safe viewing events.
- Go Stargazing: The UK astronomy platform has also been distributing ISO-compliant eclipse glasses for the August 12 event.
Important: Don’t buy simply because a listing says “eclipse glasses.” Look for ISO 12312-2, identifiable manufacturer information and a reputable seller. Safety guidance also warns against random marketplace sellers and counterfeit products.
Solar Eclipse Glasses UK: Can You Use Normal Sunglasses During the Eclipse?
No.
Ordinary sunglasses do not block enough of the Sun’s harmful radiation for safe direct viewing.
NASA specifically warns that regular sunglasses, regardless of how dark they appear, are not safe for looking directly at the Sun. Proper solar viewers are thousands of times darker and must meet appropriate safety requirements.
This rule applies even when most of the Sun disappears behind the Moon.
Solar Eclipse Glasses UK: How Much of the Sun Will the UK See?
The amount of solar coverage will depend on where people watch the eclipse.
London will see around 90% of the Sun covered at maximum. Cornwall will see roughly 95%, while Pembrokeshire will experience about 94% coverage. The farther southwest viewers travel, the greater the coverage generally becomes.
The eclipse will begin at around 6.17 pm in London, reach maximum coverage at about 7.12 pm, and end at approximately 8.06 pm. Timings will vary slightly across different parts of the UK and Ireland.
Solar Eclipse Glasses UK: Where Should You Watch the August 12 Eclipse?
The best viewing location will depend on both eclipse coverage and the local horizon.
Because the eclipse will happen while the Sun is setting, the Sun and Moon will sit relatively low in the western sky. The Royal Observatory Greenwich recommends finding a high location with a clear view toward the western horizon.
Cloud cover could also affect visibility, so viewers should check the latest local weather forecast before choosing their viewing location.
Solar Eclipse Glasses UK: Can You Watch the Eclipse Without Glasses?
Yes, but you should not look directly at the Sun.
One safe alternative is pinhole projection, which allows viewers to see an image of the partially eclipsed Sun projected onto another surface.
A simple pinhole projector can use two pieces of paper, while gaps between leaves can also naturally project the changing shape of the Sun onto the ground.
The Royal Observatory Greenwich also recommends checking whether local astronomy societies are organising eclipse-viewing events with properly filtered solar telescopes.
Solar Eclipse Glasses UK: What About Using a Phone or Camera?
People planning to photograph the eclipse need to protect their equipment as well as their eyes.
NASA warns against looking at the Sun through a camera lens, telescope, binoculars or another optical device while wearing ordinary eclipse glasses. Concentrated sunlight can pass through the optical equipment and cause serious eye injury. A suitable solar filter must be fitted to the front of the optical equipment.
Special care is therefore necessary when using a smartphone attached to binoculars, telescopes or other magnifying equipment.
Solar Eclipse Glasses UK: UK Eclipse is the Best Since 1999
The August 12 event will give Britain its deepest solar eclipse since the famous 1999 total eclipse.
Although the 2026 event will not become total anywhere in the UK, the Moon will cover around 90–96% of the Sun across different parts of the country. The Royal Observatory Greenwich describes it as the best solar eclipse visible from the UK and Ireland so far this century.
People hoping to see a total eclipse from the UK will have to wait much longer. The next total solar eclipse visible from Britain will occur in 2090.
August 12 Solar Eclipse: Safety Comes First
The eclipse may offer a spectacular view, but viewers should not allow excitement to override basic safety.
Anyone watching directly should use properly certified solar eclipse glasses throughout the partial phase. Ordinary sunglasses are not a substitute, and damaged or uncertified glasses should not be used.
With the right eye protection, a clear western horizon and favourable weather, the August 12 solar eclipse could give people across Britain an extraordinary evening sky show — one that will not be matched by another total UK eclipse for decades.
