The autumnal equinox will occur this year on September 23. The phenomenon, which signifies an equal duration of day and night due to the Earth’s position in its orbit around the sun, happens twice a year in September and March.

At these times, the sun rises directly over the central spire of Angkor Wat, according to the Ministry of Tourism.

“The event showcases the wonders of astronomy and the ancient architecture of the Khmer ancestors,” the ministry stated, emphasising the event’s significance.

However, concerns about visibility have arisen due to adverse weather conditions.

“Because of rain and clouds in Siem Reap province, the equinox has not been visible. We remain hopeful for clearer skies today or the 23rd,” said ministry secretary of state Top Sopheak.

Chhay Sivlin, president of the Cambodia Association of Travel Agents (CATA), confirmed on September 21 that they had informed tour operators and were prepared to accommodate visitors.

“The equinox gives us the chance to celebrate the marvels crafted by our Khmer ancestors. Such occasions create a unique and emotional experience for people,” Sivlin said.

Last March, a large number of travellers visited Angkor Wat to witness the spectacle. According to the Siem Reap tourism department, 8,726 individuals – 6,500 national and 2,226 foreign tourists – converged on the site at the time.