Planning for the weather is a good way to make your trip to Mafia Island relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and February, with an average temperature of 28°C, while the coldest months are July and August, with an average of 25°C. The snowiest months in Mafia Island are August, January, February and March, with each month seeing an average of 142 cm of snowfall.