For Mauritius in January, pack light, breathable clothing like shorts, t-shirts, sundresses, and swimwear since it’s hot and humid. Don’t forget a hat, sunglasses, sunscreen, and flip-flops for the beach. A light rain jacket is also useful, as it can be rainy, especially in the afternoons. For evenings, casual attire like a light sweater or shawl is good for breezy nights.