Taking into account the local weather in Britannia Beach is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and July with an average temp of 58°F, while the coldest months are February and December with an average of 34°F. The snowiest months in Britannia Beach are January, February, March, and December, with each month seeing an average of 7 inches of snowfall.