Although the weather is quite warm and sunny throughout the year, the best time to visit Isla Mujeres is between January and April. During these months, the skies will be mostly clear and temperatures will reach an average high of 29ºC/84ºF. This means it won’t be too hot, and you’ll have a chance to explore the island without suffering from too much heat and humidity. However, if you’re hoping to visit the island for a chance to swim with the whale sharks, the best time to visit Isla Mujeres is between June and September when the tours are running officially.
