On August 12, 2026, London will witness the largest partial solar eclipse in over a quarter of a century. The moon will cover about 90% of the sun, creating a rare natural phenomenon. The eclipse begins at 6:17pm, peaks at 7:13pm, and lasts until 8:06pm – a total of 1 hour and 49 minutes.
What causes a solar eclipse?
According to Royal Museums Greenwich, which includes the Royal Observatory: “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 observatory added that the next total solar eclipse visible from the UK will not occur until 2090, making this event especially worth watching.
Best viewing locations in London
While Cornwall is forecast to be the best place in the UK with 95% coverage, London's hills and open spaces still offer excellent views. Here are six recommended spots:
Greenwich Park – Home to the Royal Observatory, this south-east London park offers a wide vista toward the west and is likely to have a vibrant atmosphere.
Telegraph Hill – Near Nunhead in south-east London, this quieter spot provides an east-to-west angle away from tourist crowds.
Primrose Hill – In north London's Regent's Park, this popular hill offers views over London Zoo and the city skyline.
Parliament Hill – One of London's highest natural points at 98 metres, on Hampstead Heath, with panoramic views of landmarks like St Paul's Cathedral and the Gherkin.
Alexandra Palace – Situated between Muswell Hill and Wood Green, this high vantage point was chosen by the BBC for its clear views and sits above the tree canopy.
Crystal Palace – On the Norwood Ridge, its upper Italian terraces and open parkland provide an unobstructed view toward the west where the eclipse will peak.
Safety guidelines
The Royal Observatory warns that a person should never look directly at the Sun without appropriate filters. Proper eye protection is essential to safely observe the eclipse.
