Skywatchers across the UK and Ireland are preparing for a rare and unusually deep partial solar eclipse on Wednesday, August 12, 2026. While the event will be total in parts of Greenland, Iceland and Spain, observers across Britain and Ireland will see the Moon cover a large majority of the Sun. The best views in the UK are expected in south-western locations, particularly Cornwall and parts of Wales, while south-west Ireland offers even greater coverage, reaching more than 97% in some locations. The eclipse will occur during the early evening, making an unobstructed western horizon particularly important.
Why is the August 2026 solar eclipse attracting attention?
The August 12 eclipse is attracting considerable interest because it will be the deepest solar eclipse visible from the UK and Ireland since the total eclipse of August 1999. The Royal Observatory Greenwich says observers across Britain and Ireland will see roughly 90% or more of the Sun obscured, depending on their location.
The distinction between a partial and total eclipse is important. The UK and Ireland are outside the path of totality, meaning the Sun will not be completely covered from any location in either country. Nevertheless, the Moon will pass directly across a large section of the solar disc, creating a striking change in the appearance of the evening sky.
The global eclipse path will cross parts of Greenland, Iceland and northern Spain. For people remaining in the UK or Ireland, however, the event will still be one of the most significant astronomical spectacles visible locally in decades.
Which are the best places in the UK to see the eclipse?
The south-west of England is among the strongest choices for observers who want maximum solar coverage in the UK. Cornwall is particularly well placed, with around 95% of the Sun expected to be obscured.
In Truro, the eclipse will begin at approximately 6.18pm BST, reach maximum coverage at about 7.16pm and end at around 8.10pm. At maximum, the Moon will cover approximately 95.6% of the Sun.
Cornwall also has an important advantage because of its position towards the south-western edge of Britain. As the eclipse develops towards sunset, observers need an unobstructed view towards the west. Coastal areas, elevated viewpoints and open countryside can therefore offer better practical viewing conditions than locations surrounded by buildings, trees or hills.
The event is not restricted to Cornwall. Other parts of south-west England and southern Wales will also experience deep partial coverage.
Could Wales offer some of the UK’s best viewing conditions?
Yes. Wales is another strong option, particularly in western and south-western areas where the eclipse will be highly pronounced and the western horizon can be seen clearly.
Pembrokeshire is especially well positioned. Calculations for the county indicate that approximately 94.6% of the Sun will be obscured at maximum, with the peak occurring at about 7.13pm BST.
Cardiff will experience slightly less coverage, at about 93.2%, with maximum eclipse occurring at approximately 7.13pm. The partial eclipse is expected to run from around 6.16pm until 8.07pm in the Welsh capital.
Aberystwyth is another potentially attractive location. Around 93.2% of the Sun will be obscured there, with maximum eclipse at about 7.12pm. Historical cloud statistics listed for the location are also somewhat lower than those for Cardiff, although such averages cannot predict the actual weather on August 12.
For Wales, the key consideration is not simply the percentage of solar coverage. A location with an open western horizon may provide a better experience than a place with marginally greater coverage but buildings, hills or vegetation blocking the setting Sun.
Where in Ireland will the eclipse be most impressive?
South-western Ireland is likely to provide some of the strongest views anywhere in the UK and Ireland. Cork is one of the leading options, with approximately 96.4% of the Sun obscured at maximum eclipse.
In Cork, the eclipse will begin at about 6.15pm Irish time, reach maximum at approximately 7.13pm and finish at around 8.08pm. The total partial-eclipse phase will last close to one hour and 53 minutes.
Further west, Skibbereen is particularly well placed, with around 97.2% solar obscuration at maximum. The eclipse is expected to peak at approximately 7.14pm and finish at about 8.09pm.
Cork’s wider region therefore deserves particular attention from eclipse watchers. However, weather remains a major consideration. Historical data for Cork indicates substantial cloud cover on August 12, illustrating why choosing a location with a broad, unobstructed horizon is only part of the planning process.
What other Irish locations could offer good views?
The eclipse will be visible across the Republic of Ireland, but coverage varies considerably.
Galway is expected to experience approximately 96% obscuration, while Limerick will see around 96%. Waterford will reach roughly 95.3%, and Dublin will experience approximately 94%. Maximum eclipse in these locations will occur shortly after 7pm.
Galway could therefore be an attractive choice for observers who want high coverage while remaining in a larger urban area. Limerick also offers strong eclipse coverage.
For those travelling specifically to maximise the proportion of the Sun covered, south-western Ireland has the advantage. For those prioritising accessibility, organised events or accommodation, larger centres such as Cork, Galway and Limerick may be more practical.
What time will the August 2026 solar eclipse happen?
The exact timing varies by location, but the eclipse will take place during the evening.
In London, the partial eclipse will begin at around 6.17pm BST, reach maximum at about 7.13pm and end at approximately 8.06pm. Around 92.5% of the Sun will be obscured at maximum.
Across the UK, the event generally begins between about 6pm and 6.20pm and ends around 8pm. Scotland will see the eclipse begin slightly earlier, while the deepest coverage will generally be found farther south and west.
In Ireland, the partial eclipse starts from about 6.08pm in some locations and concludes shortly after 8pm.
Because the eclipse takes place close to sunset, the position of the Sun in the sky will become increasingly low as maximum coverage approaches.
Why is a clear western horizon so important?
The western horizon may be the most important factor when selecting a viewing site.
The Royal Observatory Greenwich advises observers to find a high point with a clear view towards the west because both the Sun and Moon will be low in the sky as the eclipse progresses. A building, woodland, hill or other obstruction could therefore hide the eclipse even if the location has excellent theoretical coverage.
This makes coastal viewpoints, open parks, elevated countryside and unobstructed western-facing locations potentially preferable to enclosed urban areas.
Weather is another major uncertainty. Astronomical calculations can establish precisely when and where the eclipse occurs, but they cannot guarantee clear skies. Cloud conditions could ultimately determine whether an observer sees the event.
How can people safely watch the solar eclipse?
The eclipse must be viewed using appropriate solar eye protection. Looking directly at the Sun without suitable protection can cause serious and permanent eye injury.
Standard sunglasses are not sufficient. Observers should use purpose-made eclipse glasses or another properly certified solar viewing method. Safe projection techniques can also allow people to observe the changing shape of the Sun without looking directly at it.
The Royal Observatory and other astronomy organisations are expected to provide public guidance and events around the eclipse. In Ireland, Armagh Observatory and Planetarium is preparing family-oriented activities, while events are also being organised in Cork with expert participation and solar-viewing equipment.
What makes the 2026 eclipse different from the 1999 event?
The comparison with 1999 is significant because the August 11, 1999 eclipse was total across parts of Cornwall and Devon, producing several minutes of darkness during daylight.
The August 12, 2026 event will not produce totality anywhere in the UK or Ireland. Instead, observers will see a very deep partial eclipse, with the Moon covering more than 90% of the Sun across much of Britain and Ireland.
The Royal Observatory describes the 2026 event as the closest the British Isles will have come to another total eclipse in almost 27 years.
For anyone wanting to experience actual totality, travel will be necessary. The path of totality crosses parts of Iceland and Spain, as well as Greenland.
What should eclipse watchers do before August 12?
Anyone planning to watch the August 2026 solar eclipse should choose a location well in advance, prioritising an unobstructed western horizon and a reliable route to the site.
It is also sensible to check the latest weather forecast shortly before the event rather than relying solely on historical cloud statistics. Travellers should allow additional time for potentially busy roads and popular viewing areas.
Most importantly, suitable solar viewing equipment should be obtained before the event. The unusual timing of the eclipse means that even a location with excellent coverage will be of limited use if the setting Sun is hidden by cloud or terrain.
The August 12 eclipse is therefore best approached as a combination of astronomy, geography and weather planning. Cornwall, Pembrokeshire and south-west Wales stand out in the UK, while Cork, Skibbereen and other parts of south-west Ireland offer some of the highest levels of solar obscuration.
The next major stage will come as weather forecasts become more reliable in the days immediately before the event. For observers across Britain and Ireland, the central message is clear: find an open western view, prepare safe solar equipment and be ready before maximum eclipse. With more than 90% of the Sun potentially covered in many locations, the August 2026 solar eclipse promises to be one of the most memorable astronomical events visible from the British Isles in a generation.
