Seasonal and festive shopping behavior differs significantly across cultures due to variations in religious practices, seasonal cycles, climate, socio-economic conditions, and cultural values. In a globalized marketplace, multinational brands must strategically align marketing, product design, and promotional timing with diverse cultural shopping rhythms. This study synthesizes consumption psychology, cultural anthropology, and seasonal marketing research to evaluate how consumer purchases fluctuate across global festive periods such as Christmas, Diwali, Ramadan, Lunar New Year, Black Friday, and Eid al-Adha. It proposes the Cross-Cultural Festive Consumption Framework (CCFCF) outlining five key determinants: Cultural Ritual Value, Social Gifting Norms, Seasonal Climate, Emotional Drivers, and Digital Influences. The findings contribute to global retail strategy, intercultural marketing, and consumer psychology.