Planning for the weather is a good way to make your trip to Rustico relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 17°C, while the coldest months are February and January, with an average of -3°C. The snowiest months in Rustico are February, January, March and December, with each month seeing an average of 137 cm of snowfall.