Skywatchers across the United Kingdom and Ireland are set to witness a major partial solar eclipse on August 12, 2026, with sun coverage reaching up to 95 percent.
This event will be the most significant solar eclipse visible from the region since 1999.
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Eclipse Details and Viewing Times
The partial eclipse will be deepest in southwestern locations. Cornwall will experience up to 95 percent coverage starting at 6:18 p.
m. , while London will see 90 percent coverage peaking at 7:12 p.
m.
A total solar eclipse will pass over Greenland, Iceland, and Northern Spain on the same day.
Observers in the UK will see a deep partial eclipse as the moon passes directly between the Earth and the sun.
Safety Precautions for Viewers
Astronomers warn that viewing the eclipse directly without certified protection poses severe risks to eyesight.
Reduced brightness can override the body's natural blink reflex and cause painless retinal damage.
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Standard sunglasses do not offer adequate protection. Official guidance advises using purpose-built solar viewers that comply with ISO 12312-2:2015(E) safety standards.
Alternatively, observers can use indirect methods such as pinhole projectors, colanders, or leaf shadows to project the sun's image safely onto the ground.
Astronomical Significance
Royal Museums Greenwich explained the alignment: "A solar eclipse occurs when the Earth, moon and sun align.
The moon passes in front of the sun and blocks its light, casting a small shadow on Earth."
The institution highlighted the rarity of total solar eclipses visible from the UK.
The next total solar eclipse visible from the UK will occur in 2090, a 64-year wait.
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Multiple local astronomical societies across London, including groups in Greenwich, Croydon, and Purley, are organizing public viewing events and providing specialist equipment for safe observation.
