International Rosé Day is observed worldwide on the fourth Friday of June, celebrating the versatility and appreciation of rosé wines. The holiday was established by Valérie Rousselle, the owner and CEO of Château Roubine and Château Sainte-Béatrice in Provence, France, with the aim of promoting Provençal rosé and dispelling misconceptions about the wine style. The inaugural celebration took place on June 22, 2018, and is managed by the International Rosé Organization (Organisation Internationale du Rosé, OIR). Participants can join the festivities by toasting with their favorite rosé, exploring wines from different countries, attending tastings, and sharing their experiences on social media using hashtags like #InternationalRoséDay. Notably, rosé wines can vary in color and sweetness, and are produced in various regions including Italy, Spain, and the United States.