Belgium Prepares for Rare Solar Eclipse on August 12

Belgium is bracing for its most significant solar eclipse in nearly three decades, with the Moon set to cover approximately 90 percent of the Sun’s disk on Wednesday, August 12, 2026. According to RTBF, this will be the largest solar eclipse visible from Belgium since the total eclipse of August 11, 1999.

What Belgians Will See

While the path of totality crosses the Arctic Ocean, Greenland, Iceland, the Atlantic, and northern Spain, Belgium will experience a deep partial eclipse. From Brussels, the Moon will obscure approximately 89.5 percent of the Sun’s surface, with the eclipse lasting 1 hour and 46 minutes from start to finish.

The eclipse timeline for Brussels is precise: first contact at 19:18, maximum eclipse at 20:13 with the Sun at just 7.5 degrees altitude, and last contact at 21:05, shortly before sunset. As hemel.waarnemen.com details, observers in Bruges will see slightly more obscuration at 89.8 percent, while those in Antwerp will see slightly less at 89.3 percent.

Because the eclipse occurs near sunset, a clear view of the western or northwestern horizon is essential. A hedge, hill, or building could block the maximum obscuration and the end of the eclipse.

Safety First: Certified Eclipse Glasses Required

Looking at the Sun without proper protection can cause irreversible retinal damage, even when 90 percent of the solar disk is covered. As RTBF emphasizes, regular sunglasses, no matter how dark, are not sufficient protection.

Observers must use eclipse glasses certified to the ISO 12312-2 international standard. These glasses filter 100 percent of UV radiation and cost only a few euros. The Société astronomique de France has warned about counterfeit glasses being sold with magazines that lack proper certification markings. Legitimate glasses must display usage instructions in French, manufacturing date, batch number, origin, and manufacturer information.

“Looking at the Sun without adequate protection causes retinal lesions that are irreversible without feeling any pain,” warned Roland Lehoucq, president of the SAF, via AFP. Eclipse glasses do not expire and can be kept for future eclipses in 2027 and 2028.

A Scientific Opportunity

The eclipse is not just a visual spectacle. According to RTBF, scientists at the European Space Agency will use the event to study the Sun’s corona—its outer atmosphere, normally invisible due to the Sun’s brightness. ESA’s Proba-3 mission, twin satellites creating artificial eclipses, will capture the beginning of solar wind propagation, a plasma of charged particles escaping from the Sun into interplanetary space.

“This isn’t just a scientific moment. It’s also a very human moment. There’s a real connection with the Cosmos,” said Carole Mundell, ESA’s Director of Science, as reported by VRT NWS.

The ESA/Cosmos portal notes that Proba-3’s ASPIICS coronagraph has been in continuous observation since July 28 and will continue through August 19, with coordinated observations planned around the eclipse day.

Viewing Tips and What to Expect

Observers should start early—the views before and after maximum are often more beautiful. The Le JDE advises bringing food, drink, and warm clothing, as the eclipse lasts nearly two hours and ends near sunset when temperatures can drop.

Natural phenomena will accompany the event: shadows become sharper and distorted, and small openings between leaves project crescent-shaped images on the ground—natural pinhole cameras. The eclipse also coincides with the Perseid meteor shower season, offering a bonus celestial display.

For photography, Spacepage.be warns that pointing smartphone cameras at the Sun without protection can damage the camera sensor. NASA recommends holding a pair of eclipse glasses in front of the phone’s lens when photographing the Sun outside of totality.

A Rare Event Not to Be Missed

This is the first total eclipse on the European mainland since 1999, and Belgium’s next total eclipse won’t occur until 2090, with the following one in 2142. The Flemish Volkssterrenwachten have launched an information campaign for schools, emphasizing that this is the biggest solar eclipse visible in Belgium since 1999—and it will be another 55 years before such a spectacle returns.

With Nieuws365.be noting that eclipse glasses sold out rapidly in the days before the 1999 event, Belgians are advised to purchase their certified ISO 12312-2 glasses now, well ahead of August 12.

As the Sun dips toward the western horizon on August 12, Belgians who have prepared will witness a celestial event that won’t come around again for generations. The key is to be ready: certified glasses in hand, a clear view to the west, and a sense of wonder for one of nature’s most extraordinary spectacles.