Vaikasi Visakam 2026, the birth-star festival of Lord Muruga (Subramanya, Shanmuga), will be observed on 30 May, when Visakam Nakshatra aligns with the Tamil solar month of Vaikasi. The festival is star-based, not tithi-based, and temples set muhurta locally, often guided by the sunrise rule or the dominant duration of Visakam. This comprehensive guide explains…