A solar eclipse will be visible across the UK, parts of Iceland, Spain, and many U.S. states on Wednesday, Aug. 12, 2026 [1, 2].

This celestial event represents a once-in-a-generation occurrence for observers in Europe. Because the Moon's orbit brings it directly between the Earth and the Sun, it temporarily blocks the Sun's light [3].

In the United Kingdom, the eclipse is expected to begin around 18:00 BST [1, 2]. Observers in the UK will see a partial eclipse, with the Moon blocking more than 90% of the Sun [1]. While some regions may experience a total eclipse, the event remains partial for most of the UK and Europe [1, 3].

The phenomenon extends across the Atlantic, where millions of Americans are expected to catch a partial solar eclipse [2]. The event is described as a must-see sky show for those in the path of visibility [3].

Experts recommend using safe-watching methods to view the event. Direct observation of the Sun without proper protection can cause permanent eye damage.

Because the Moon's alignment varies by geography, the level of coverage differs by location. While the UK sees a significant partial block, other regions in Iceland and Spain will experience varying degrees of darkness depending on their specific coordinates [1, 2].

The Moon will block out more than 90% of the sun in the UK

The 2026 eclipse highlights the rarity of total and near-total solar alignments for European populations. While partial eclipses occur more frequently, the high percentage of solar coverage in the UK creates a significant drop in daylight, providing a unique opportunity for atmospheric study and public engagement with astronomy.