Taking into account the local weather in Bonne Bay is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 57°F, while the coldest months are February and January with an average of 22°F. The snowiest months in Bonne Bay are February, December, January, and March, with each month seeing an average of 9 inches of snowfall.