Key Takeaways
- A partial solar eclipse will be visible across the United Kingdom on Wednesday, 12 August 2026, with the Moon covering more than 90 % of the Sun in most locations.
- Belfast, along with several cities in Wales and Northern Ireland, will experience the greatest coverage in the UK at 93 %.
- The eclipse will begin in the early evening (around 6 pm) and reach its maximum between 7 pm and 7:15 pm, ending shortly after 8 pm, depending on the observer’s latitude and longitude.
- Health authorities stress that only specially designed eclipse glasses or handheld solar viewers provide safe eye protection; ordinary sunglasses are insufficient.
- An interactive map from Time and Date lets users check exact start, peak, and end times for any UK postcode, though users near the edge of the eclipse path should consider moving a few hundred metres toward the centre for the best view.
Overview of the August 12 2026 Solar Eclipse
On Wednesday, 12 August 2026, the Moon will pass directly between the Earth and the Sun, casting its shadow across the Northern Hemisphere. While the Moon will not completely obscure the Sun from any point in the United Kingdom, the alignment will produce a deep partial eclipse for most of the country. The Royal Observatory Greenwich notes that the deepest views will be found in the south‑west of the UK, where the Moon’s silhouette will cover the largest fraction of the solar disc. Elsewhere, observers will still witness a striking reduction in sunlight, with the sky taking on an unusual twilight hue even though the event occurs in the early evening.
Visibility Across the United Kingdom
The eclipse’s magnitude varies noticeably from one region to another. In England, most major cities will see between 90 % and 95 % of the Sun covered, with Cornwall leading at 95 % coverage. Scotland’s cities range from 88 % in Lerwick to 91 % in Glasgow and Fort William. Wales shows uniformly high values, with Aberystwyth, Cardiff, Newport, and Swansea all reporting 93 % coverage. Northern Ireland mirrors this pattern, with Belfast, Armagh, Craigavon, Lisburn, Londonderry, and Omagh each set to observe 93 % obscuration. These figures mean that, for a brief period around the eclipse’s peak, the Sun will appear as a thin crescent, dramatically reducing daylight and creating a memorable visual experience for anyone with proper eye protection.
Detailed Timings for England
- Birmingham: Eclipse begins at 18:15, peaks at 19:11 (91 % coverage), ends at 20:05.
- Bristol: Starts 18:17, maximum 19:13 (92 %), finishes 20:07.
- Cornwall: Begins 18:18, peaks 19:15 (95 %), concludes 20:09.
- Liverpool: Starts 18:13, maximum 19:10 (91 %), ends 20:04.
- London: Begins 18:17, peaks 19:13 (91 %), finishes 20:06.
- Manchester: Starts 18:13, maximum 19:10 (91 %), ends 20:03.
- Southampton: Begins 18:18, peaks 19:14 (92 %), concludes 20:07.
Across England, the eclipse’s onset clusters between 18:13 and 18:18, with the maximum occurring roughly an hour later, between 19:10 and 19:15. The event concludes just after 20:00, giving observers a window of just under two hours to witness the progression from first contact to final contact.
Detailed Timings for Scotland
- Aberdeen: Begins 18:06, peaks 19:03 (89 %), ends 19:57.
- Dundee: Starts 18:07, maximum 19:04 (90 %), finishes 19:59.
- Edinburgh: Begins 18:08, peaks 19:05 (90 %), ends 20:00.
- Fort William: Starts 18:06, maximum 19:04 (91 %), concludes 19:59.
- Glasgow: Begins 18:08, peaks 19:06 (91 %), ends 20:00.
- Inverness: Starts 18:05, maximum 19:03 (90 %), finishes 19:57.
- Lerwick: Begins 18:01, peaks 18:58 (88 %), ends 19:52.
Scottish observers will see the eclipse start a few minutes earlier than their southern counterparts, with the peak occurring between 19:03 and 19:06. The northernmost locations, such as Lerwick, experience the lowest coverage (≈ 88 %) but still enjoy a noticeable dimming of the sky.
Detailed Timings for Wales
- Aberystwyth: Begins 18:15, peaks 19:12 (93 %), ends 20:06.
- Bangor: Starts 18:13, maximum 19:10 (92 %), finishes 20:04.
- Cardiff: Begins 18:16, peaks 19:13 (93 %), ends 20:07.
- Colwyn Bay: Starts 18:13, maximum 19:10 (92 %), concludes 20:04.
- Newport: Begins 18:16, peaks 19:13 (93 %), ends 20:07.
- Newtown: Starts 18:15, maximum 19:11 (92 %), finishes 20:05.
- Swansea: Begins 18:16, peaks 19:13 (93 %), ends 20:07.
Welsh towns enjoy some of the highest eclipse magnitudes in the UK, with many locations hovering around the 93 % mark. The timing pattern mirrors that of England: onset around 18:13‑18:16, peak near 19:10‑19:13, and conclusion just after 20:00.
Detailed Timings for Northern Ireland
- Armagh: Begins 18:10, peaks 19:08 (93 %), ends 20:03.
- Belfast: Starts 18:10, maximum 19:08 (93 %), finishes 20:03.
- Craigavon: Begins 18:10, peaks 19:08 (93 %), ends 20:03.
- Lisburn: Starts 18:10, maximum 19:08 (93 %), concludes 20:03.
- Londonderry: Begins 18:09, peaks 19:07 (93 %), ends 20:02.
- Omagh: Starts 18:10, maximum 19:08 (93 %), finishes 20:03.
Northern Ireland mirrors the high coverage seen in Wales and parts of England, with the eclipse commencing just after 18:09, reaching its maximum around 19:07‑19:08, and ending shortly after 20:00. The consistency across the region makes it an ideal location for group viewing events.
Safety Advice for Observers
Health officials, including the UK Health Security Agency, unequivocally advise that viewers protect their eyes during the eclipse. The Sun’s intense radiation can cause permanent retinal damage even when a large portion of its disc is obscured. Ordinary sunglasses, regardless of how dark they are, do not filter out the harmful ultraviolet and infrared rays necessary for safe solar observation. Instead, observers should use eclipse glasses that meet the ISO 12312‑2 international safety standard or handheld solar viewers equipped with appropriate filters. If using telescopes, binoculars, or cameras, solar filters must be placed over the front optics—not the eyepiece—to prevent concentrated sunlight from damaging both the equipment and the viewer’s eyes. Parents and educators should supervise children closely to ensure they keep their protective eyewear on at all times while the Sun is visible.
Interactive Map and Accuracy Considerations
The astronomical tracking site Time and Date provides an interactive map where users can enter a postcode or town name to obtain precise timings for the eclipse’s start, maximum, and end, as well as the expected percentage of solar coverage. The site notes that while the calculations are performed to a high degree of mathematical accuracy, absolute precision cannot be guaranteed due to atmospheric refraction, slight variations in the Moon’s orbit, and local topography. For observers situated near the edge of the eclipse’s path—where the coverage changes rapidly over short distances—the site recommends moving a few hundred metres toward the centre of the eclipse zone to ensure they experience the maximum possible obscuration. This simple adjustment can make a noticeable difference in the visual impact of the event.
Conclusion
The August 12 2026 solar eclipse promises to be a remarkable astronomical event for the United Kingdom, offering a deep partial eclipse that will turn the early evening sky into an unusual twilight across much of the country. With Belfast, several Welsh cities, and numerous locations in Northern Ireland set to enjoy 93 % solar coverage, and many English and Scottish towns experiencing 90‑95 % obscuration, the spectacle will be widely accessible. By consulting the Time and Date interactive map, adhering to strict eye‑safety protocols, and, if necessary, adjusting viewing locations slightly toward the centre of the eclipse path, members of the public can safely enjoy one of nature’s most awe‑inspiring displays. As the Moon slides across the Sun’s face, observers will be reminded of the precise celestial mechanics that govern our solar system—and the fleeting beauty that arises when those motions align perfectly.