Sun overhead in Bangkok: Zero Shadow Day falls on April 27

April in Bangkok is buzzing with energy! After the wild water battles of Songkran, the heat is back, and so is an extraordinary event you won’t want to miss – Zero Shadow Day. On April 27 at exactly 12.16pm, the sun will align perfectly overhead, making vertical objects cast no shadows at all. That’s right, for a brief, magical moment, it’s as if everything stands still under the blazing sun!

This phenomenon, called the subsolar point, is a rare treat for stargazers and science lovers alike. But here’s the catch – the Meteorological Department predicts cloudy skies and even possible thunderstorms in Bangkok on the big day. Don’t let that dampen your excitement, though! Even if the clouds roll in, temperatures are expected to hover between 33 and 36°C, so it won’t be the year’s hottest day.

Can’t catch it this time? Don’t worry! Thailand’s next Zero Shadow Day will happen on May 22, 2025, in Mae Sai, Chiang Rai, at 12.17pm. Mark your calendar and get ready to experience this cosmic wonder again.