Planning for the weather is a good way to make your trip to Cano Island relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and February, with an average temperature of 27°C, while the coldest months are January and February, with an average of 27°C. The rainiest months in Cano Island are October, July, August and November, with each month seeing an average of 679 mm of rainfall.