Guru Purnima 2026 Mein Kab Ki Hai: Guru Purnima in 2026 will be observed on Wednesday, July 29, marking the full moon. The Purnima Tithi begins on July 28 and concludes on July 29, with moonrise at 7:21 PM. School closures for Guru Purnima are not centrally mandated and depend on state and local decisions. Many states traditionally observe this day as a holiday, while others may have local observances.