The best time to visit Mauritius is during the dry and cooler season, which typically spans from May to December. This period offers pleasant temperatures, lower humidity levels, and minimal rainfall, making it ideal for outdoor activities like hiking, snorkeling, and exploring the island's natural beauty.Specifically, the months of September to December are particularly popular as they mark the beginning of summer in the southern hemisphere. During this time, you can expect warm temperatures without the intense heat and humidity of mid-summer. Additionally, the sea conditions are excellent for water sports like diving and snorkeling, with great visibility and calmer waters.It's worth noting that Mauritius is a year-round destination, and even during the wetter and warmer season from January to April, the weather can still be enjoyable, albeit with higher chances of rainfall and occasional tropical storms. If you prefer to avoid crowds and don't mind some rain, visiting during the shoulder seasons of May-June or November-December can be a good option.