Today, 12 August 2026, the UK and Ireland will experience a partial solar eclipse, marking the most significant solar event of its kind since 1999. While a total solar eclipse will be visible in Greenland, Iceland, and Northern Spain, viewers in the UK and Ireland can expect to see around 90 per cent of the sun covered by the moon.
The Royal Museums Greenwich states that a solar eclipse occurs when the Earth, moon, and sun align, with the moon blocking the sun's light and casting a shadow on Earth. The next total solar eclipse visible from the UK is not expected until 2090.
Visibility will be greater further south-west in the UK. First contact is expected from 6:08pm in Scotland to 6:18pm in Truro, Cornwall. Maximum coverage will occur between 7:05pm and 7:15pm, with the moon no longer covering the sun in all areas by 8:10pm. Specific locations like Cornwall could see up to 95 per cent coverage, while Pembrokeshire is set for 94 per cent, and London around 90 per cent.
For safe viewing, eclipse glasses are essential, though they are largely sold out in stores and online. The Royal Astronomical Society offers guidance on eclipse-watching, including how to create pinhole viewers.